JP5621067B1 - Disposable diapers - Google Patents
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- JP5621067B1 JP5621067B1 JP2014103473A JP2014103473A JP5621067B1 JP 5621067 B1 JP5621067 B1 JP 5621067B1 JP 2014103473 A JP2014103473 A JP 2014103473A JP 2014103473 A JP2014103473 A JP 2014103473A JP 5621067 B1 JP5621067 B1 JP 5621067B1
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- 239000006096 absorbing agent Substances 0.000 claims abstract description 90
- 230000000149 penetrating effect Effects 0.000 claims abstract description 78
- 230000035515 penetration Effects 0.000 claims abstract description 28
- 230000002745 absorbent Effects 0.000 claims abstract description 26
- 239000002250 absorbent Substances 0.000 claims abstract description 26
- 239000010410 layer Substances 0.000 claims description 183
- 210000002700 urine Anatomy 0.000 claims description 13
- 239000002356 single layer Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000000835 fiber Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- -1 polyethylene Polymers 0.000 description 9
- 239000007787 solid Substances 0.000 description 8
- 239000004745 nonwoven fabric Substances 0.000 description 7
- 210000004706 scrotum Anatomy 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 239000005060 rubber Substances 0.000 description 6
- 230000008602 contraction Effects 0.000 description 5
- 230000027939 micturition Effects 0.000 description 5
- 239000004831 Hot glue Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 229920002994 synthetic fiber Polymers 0.000 description 4
- 239000012209 synthetic fiber Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 210000004013 groin Anatomy 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920000247 superabsorbent polymer Polymers 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000004750 melt-blown nonwoven Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
Abstract
【課題】表面間隙の維持性に優れ、製造も容易である使い捨ておむつを提供する。【解決手段】下層吸収体２３Ｂには、少なくとも股間部Ｃ２の幅方向中央部に、厚み方向に貫通する細長状の下層貫通部６０が前後方向に沿って延在され、上層吸収体２３Ａには、少なくとも下層貫通部６０と対応する前後方向範囲内に、厚み方向に貫通する上層貫通部５０が設けられ、上層貫通部５０は、下層貫通部６０上に位置し前後方向に延在する細長状の中間部分５１と、この中間部分５１における後側位置の幅方向両側に張り出した張出部分５２とを有し、張出部分５２の側縁は、少なくとも前側の一部が後側に向かうにつれて幅方向外側に位置する形状とされ、上層貫通部５０の中間部は上層吸収体２３Ａの前端まで延在されて上層吸収体２３Ａの前端に開口されており、上層吸収体２３Ａの前端は下層貫通部６０の前端と同じか後側に位置されており、下層貫通部６０は下層吸収体２３Ｂの前後方向中間に設けられている。【選択図】図６Disclosed is a disposable diaper that has excellent surface gap maintenance and is easy to manufacture. An elongated lower layer through-hole 60 penetrating in the thickness direction extends at least in the center in the width direction of the crotch portion C2 in the lower layer absorber 23B along the front-rear direction. The upper layer penetrating portion 50 penetrating in the thickness direction is provided at least in the front-rear direction range corresponding to the lower layer penetrating portion 60, and the upper layer penetrating portion 50 is located on the lower layer penetrating portion 60 and extends in the front-rear direction. Intermediate portion 51 and a protruding portion 52 protruding to both sides in the width direction of the rear position of the intermediate portion 51, and at least a part of the front side of the side edge of the protruding portion 52 is directed to the rear side. The intermediate portion of the upper layer through-hole 50 extends to the front end of the upper absorber 23A and opens at the front end of the upper absorber 23A. The front end of the upper absorber 23A penetrates the lower layer. Same as front end of section 60 Are positioned on the rear side, the lower the penetration portion 60 is provided in the longitudinal direction intermediate the lower absorbent body 23B. [Selection] Figure 6
Description
本発明は、漏れ防止性能に優れる使い捨ておむつに関するものである。 The present invention relates to a disposable diaper having excellent leakage prevention performance.
使い捨ておむつにおける漏れの形態は千差万別であるが、その中の一つの形態として、装着者が男性の場合における尿の前漏れ（使い捨ておむつの前側からの漏れ。以下、男性前漏れともいう。）がある。男性前漏れは、装着者が女性である場合には発生しないのに、装着者が男性であるとその他は同じ条件でも発生するものであり、その原因は、特許文献１，２に示されるように、排尿位置よりも後方に位置する陰嚢が使い捨ておむつ表面に密着して隙間が極端に少なくなることにより、尿の後方移動が阻害されることである、というものであった。 There are many different types of leaks in disposable diapers, but one of them is pre-leakage of urine when the wearer is male (leak from the front side of the disposable diaper. .) Leakage before male does not occur when the wearer is female, but occurs when the wearer is male, even under the same conditions. The cause is shown in Patent Documents 1 and 2. In addition, the scrotum located behind the urination position is in close contact with the surface of the disposable diaper and the gap is extremely reduced, thereby inhibiting the backward movement of urine.
また、本発明者のその後の研究により、男女を問わず、１回の排尿量が多い場合や少量でも複数回の排尿があった場合は、尿の吸収が間にあわずに使い捨ておむつ表面を尿が移動する状態が長く続くのに反して、使い捨ておむつの股間部表面と身体表面との隙間（以下、単に表面間隙ともいう）が少ないため、尿が後方へ拡散し難くなり、隙間が発生し易い脚の付け根付近から漏れ易い傾向があることも判明した。 In addition, according to the subsequent research by the present inventor, regardless of gender, when a single urination volume is large or multiple urinations occur even in a small volume, the urine is applied to the surface of the disposable diaper without absorbing urine in time. Contrary to the fact that the state of movement continues for a long time, the gap between the crotch surface of the disposable diaper and the body surface (hereinafter also referred to simply as the surface gap) is small, so it is difficult for urine to diffuse backwards and a gap is likely to occur. It was also found that there was a tendency to leak from the base of the legs.
このような表面間隙の少なさに起因する漏れの解決手段として、本出願人による特許文献１，２記載の提案は男女を問わず有効なものであるが、特許文献１記載のものは表面間隙を形成する窪みの形状維持性の点で、また特許文献２記載のものは製造容易性の点でそれぞれ改善の余地があった。 As a means for solving such leakage due to the small surface gap, the proposals described in Patent Documents 1 and 2 by the present applicant are effective regardless of gender, but those described in Patent Document 1 There is room for improvement in terms of maintainability of the shape of the depressions forming the dents and in terms of ease of manufacture in the one described in Patent Document 2.
そこで、本発明の主たる課題は、表面間隙の維持性に優れ、製造も容易である使い捨ておむつを提供することにある。 Then, the main subject of this invention is providing the disposable diaper which is excellent in the maintainability of a surface gap and is easy to manufacture.
上記課題を解決した本発明は、以下のとおりである。
＜請求項１記載の発明＞
股間部と、股間部の後側に延在する後側部分とを有しており、
前記股間部から前記後側部分にかけて、尿を吸収する吸収体を備えた、使い捨ておむつにおいて、
前記吸収体として、下層吸収体と、下層吸収体の上に設けられた上層吸収体とを備えており、
前記下層吸収体には、少なくとも股間部の幅方向中央部に、厚み方向に貫通する細長状の下層貫通部が前後方向に沿って延在されており、
前記上層吸収体には、少なくとも前記下層貫通部と対応する前後方向範囲内に、厚み方向に貫通する上層貫通部が設けられており、
前記上層貫通部は、前記下層貫通部上に位置し前後方向に延在する細長状の中間部分と、この中間部分における前後方向中間位置または後側位置の幅方向両側に張り出した張出部分とを有しており、
前記張出部分の側縁は、少なくとも前側の一部が後側に向かうにつれて幅方向外側に位置する形状とされており、
前記上層貫通部の前記中間部は、前記上層吸収体の前端まで延在され、かつ前記上層吸収体の前端に開口されており、
前記上層吸収体の前端は、前記下層貫通部の前端と同じか後側に位置されており、
前記下層貫通部は、前記下層吸収体の前後方向中間に設けられており、
前記吸収体は、前記上層貫通部の張出部分の領域が前記下層吸収体による一層構造とされるとともに、前記上層貫通部の張出部分の幅方向外側が前記上層吸収体及び下層吸収体による二層構造とされている、
ことを特徴とする使い捨ておむつ。
The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
Having a crotch portion and a rear portion extending to the rear side of the crotch portion,
In the disposable diaper provided with an absorber that absorbs urine from the crotch part to the rear side part,
As the absorber, comprising a lower layer absorber, and an upper layer absorber provided on the lower layer absorber,
In the lower layer absorbent body, an elongated lower layer penetration part penetrating in the thickness direction is extended along the front-rear direction at least in the width direction central part of the crotch part,
The upper layer absorbent body is provided with an upper layer penetrating portion penetrating in the thickness direction within at least the front-rear direction range corresponding to the lower layer penetrating portion,
The upper layer penetrating portion is an elongated middle portion that is located on the lower layer penetrating portion and extends in the front-rear direction, and a projecting portion that projects in the width direction both sides in the front-rear direction middle position or the rear side position in the middle portion. Have
The side edge of the overhanging portion has a shape that is positioned on the outer side in the width direction as at least a part of the front side goes to the rear side,
The intermediate portion of the upper layer penetrating portion extends to the front end of the upper layer absorber, and is open to the front end of the upper layer absorber.
The front end of the upper layer absorber is located on the same side or the rear side of the front end of the lower layer penetration,
The lower layer penetration part is provided in the middle of the lower layer absorber in the front-rear direction ,
In the absorber, the region of the protruding portion of the upper layer penetrating portion is a single layer structure by the lower layer absorber, and the outer side in the width direction of the protruding portion of the upper layer penetrating portion is by the upper layer absorber and the lower layer absorber. It has a two-layer structure ,
A disposable diaper characterized by that.
（作用効果）
このような二層構造の吸収体では、下層貫通部及び上層貫通部の中間部分の重なり部分には吸収体が無く、上層貫通部の張出部分の部位は下層吸収体の一層構造となり、上層貫通部の張出部分の外側は上層吸収体及び下層吸収体の二層構造となる。装着状態で使い捨ておむつが両脚間に挟まれて幅方向に圧縮されたときには、下層貫通部及び上層貫通部の中間部分の重なり部分には吸収体が無いため、各貫通部の両側縁は圧縮量に応じて接近する。このとき、上層貫通部の張出部分に位置する一層構造部分にも互いに接近する方向に力が作用するものの、一層構造部分が二層構造部分との境界である上層貫通部の張出部分の側縁に沿って裏側に折れ曲がり易いこと、並びに上層貫通部の張出部分の側縁は少なくとも前側の一部が後側に向かうにつれて幅方向外側に位置する形状（つまり右側については右斜め後ろ向き、左側については左斜め後ろ向き）とされ、一層構造部分の幅が後側に向かうにつれて拡大することによって、一層構造部分は後側に向かうにつれて徐々にその幅方向外側の二層構造部分に対して裏側に折れ曲がり、これに伴い一層構造部分の間の無吸収体部分が裏側に向かって落ち込み、使い捨ておむつの表面にほぼ舟形の窪みが形成される。これに対して、上層貫通部の張出部分が矩形状（つまり張出部分の側縁はコ字状）では、一層構造部分の前側に位置する二層構造部分の角部が変形を阻害するため、舟形窪みを形成する変形が起こり難いのはもちろん、表面が窪むような変形自体が起こり難い。
また、下層貫通部が下層吸収体の前後に突き抜けない配置とすることにより、吸収体全体としての剛性を確保しつつ、上層貫通部については上層吸収体の前端に突き抜ける配置とし、かつ上層吸収体の前端を下層吸収体の前端と同じか後側に位置させることにより、股間部が幅方向に圧縮されたとき、上層吸収体の前側ほど、かつ上層貫通部の前側ほど圧縮され易くなり、その結果として、前述の舟形の窪みが形成され易くなる。
そして、このような舟形の窪みは幅方向の圧縮に対して復元し易いだけでなく、裏側に折れ曲がった一層構造部分が壁となって窪みの深さが維持されるため、舟形窪みの維持性、ひいては表面間隙の維持性に優れる。排尿時には、当該窪み領域の前側に排泄された尿のうち吸収されずに表面を移動する分は、この大きな表面間隙を流路として後側に流れ、その過程で後側の吸収体により吸収される。よって、従来問題となっていた表面間隙の少なさによる拡散阻害を効果的に防止することができる。なお、吸収体に前後方向スリットを設けて前後方向の拡散性を向上させることは知られているが、本発明はそのような周知の拡散向上技術と比べて次元の違う効果がある。
さらに、吸収体を二層構造とすることや、それぞれに厚み方向の貫通部を設けることは製造技術として確立されているため、その形状や位置関係を変更するだけで容易に製造できる。
(Function and effect)
In such a two-layer absorber, there is no absorber in the overlapping portion between the lower layer penetrating portion and the upper layer penetrating portion, and the overhang portion portion of the upper layer penetrating portion has a single layer structure of the lower layer absorber. The outside of the protruding portion of the penetrating portion has a two-layer structure of an upper layer absorber and a lower layer absorber. When the disposable diaper is sandwiched between both legs in the wearing state and compressed in the width direction, there is no absorber in the overlapping part between the lower layer penetration part and the middle part of the upper layer penetration part. Depending on the approach. At this time, although a force acts in a direction in which the single-layer structure portion located in the overhang portion of the upper layer penetration portion approaches each other, the single layer structure portion of the overhang portion of the upper layer penetration portion that is the boundary with the two-layer structure portion It is easy to bend to the back side along the side edge, and the side edge of the overhanging portion of the upper layer penetrating part is located at the outer side in the width direction as at least a part of the front side goes to the rear side (i.e., diagonally rightward and backward for the right side, The left side of the left-hand side of the left-hand side of the left-hand side of the left-hand side of the left-hand side of the left-hand side of the left-hand side is As a result, the non-absorbent portion between the structural portions falls toward the back side, and a substantially boat-shaped depression is formed on the surface of the disposable diaper. On the other hand, when the overhanging portion of the upper layer penetrating portion is rectangular (that is, the side edge of the overhanging portion is U-shaped), the corner portion of the two-layer structure portion located on the front side of the one-layer structure portion inhibits deformation. Therefore, the deformation that forms the boat-shaped depression hardly occurs, and the deformation itself that the surface is depressed hardly occurs.
Further, by arranging the lower layer penetrating portion so as not to penetrate before and after the lower layer absorber, the upper layer penetrating portion is arranged to penetrate the front end of the upper layer absorber while ensuring the rigidity of the entire absorber, and the upper layer absorber. When the crotch portion is compressed in the width direction by positioning the front end of the same as the front end of the lower layer absorbent body, the front side of the upper layer absorbent body and the front side of the upper layer penetration part are easily compressed. As a result, the aforementioned boat-shaped depression is easily formed.
Such a boat-shaped dent is not only easily restored to compression in the width direction, but also the depth of the dent is maintained by a layered structure part bent on the back side, so the maintainability of the boat-shaped dent is maintained. As a result, it is excellent in maintainability of the surface gap. During urination, the portion of the urine excreted on the front side of the depression area that moves on the surface without being absorbed flows to the rear side through this large surface gap, and is absorbed by the rear-side absorber in the process. The Therefore, it is possible to effectively prevent the diffusion inhibition due to the small surface gap, which has been a problem in the past. Although it is known to improve the diffusibility in the front-rear direction by providing the front-rear direction slit in the absorber, the present invention has an effect different in dimension compared to such a known diffusion improvement technique.
Furthermore, since it has been established as a manufacturing technique that the absorber has a two-layer structure and a through portion in the thickness direction is provided for each of the absorbers, the absorber can be easily manufactured only by changing its shape and positional relationship.
＜請求項２記載の発明＞
前記上層貫通部の側方から突出する突出部分が前後方向に延在されるとともに、この突出部分の前側及び後側に位置する部分がそれぞれ倒伏状態で固定された非起立部とされ、これら非起立部間の部分が非固定の起立部とされ、且つこの起立部にギャザー弾性伸縮部材が前後方向に伸張した状態で固定された股間部立体ギャザーが、表面の幅方向両側に設けられており、
前記上層貫通部の張出部分は、前後方向において前記股間部立体ギャザーの非起立部間に位置している、
請求項１記載の使い捨ておむつ。
<Invention of Claim 2>
A protruding portion protruding from the side of the upper layer penetrating portion extends in the front-rear direction, and the portions located on the front side and the rear side of the protruding portion are non-standing portions fixed in a lying state, respectively. The part between the standing parts is a non-fixed standing part, and the crotch part three-dimensional gather fixed to the standing part with the gather elastic elastic member extended in the front-rear direction is provided on both sides in the width direction of the surface. ,
The overhanging portion of the upper layer penetrating portion is located between the non-standing portions of the crotch portion three-dimensional gather in the front-rear direction.
The disposable diaper according to claim 1.
（作用効果）
このような股間部立体ギャザーを有することにより、股間部立体ギャザーのギャザー弾性伸縮部材の収縮力が一層構造部分に効果的に作用し、前述の舟形窪みの形成が促進され、また窪みの形状維持性が向上する。さらに、上層貫通部の張出部分は窪みの壁となる部分であり、その間の部分を含めて吸収体の吸収量が少なく、尿が移動し易い部分であるため、その両側に股間部立体ギャザーを設けることにより、いわゆる横漏れ防止も図られる。
(Function and effect)
By having such a crotch part three-dimensional gather, the contraction force of the gather elastic elastic member of the crotch part three-dimensional gather is more effective on the structural part, the formation of the aforementioned boat-shaped depression is promoted, and the shape of the depression is maintained. Improves. Furthermore, the overhanging portion of the upper layer penetrating portion is a portion that becomes a wall of the depression, and since the absorption amount of the absorbent body including the portion in between is small and the urine easily moves, the crotch three-dimensional gathers on both sides thereof By providing this, so-called side leakage can be prevented.
＜請求項３記載の発明＞
前記上層貫通部の張出部分は、中間部分との境界を下底とする台形状をなしている、請求項１又は２記載の使い捨ておむつ。
<Invention of Claim 3>
The disposable diaper according to claim 1 or 2, wherein the overhanging portion of the upper layer penetrating portion has a trapezoidal shape with the boundary with the intermediate portion as the bottom.
（作用効果）
上層貫通部がこのような形状であると、製造が容易であるため好ましい。
(Function and effect)
It is preferable that the upper layer penetrating portion has such a shape because manufacturing is easy.
以上のとおり本発明によれば、表面間隙の維持性に優れ、製造も容易となる等の利点がもたらされる。 As described above, according to the present invention, there are advantages such as excellent surface gap maintenance and easy manufacture.
以下、本発明の一実施形態について、添付図面に示されるパッドタイプ使い捨ておむつの例を参照しながら詳説する。
図１〜図６は、パッドタイプ使い捨ておむつ２００を示している。このパッドタイプ使い捨ておむつ２００は、股間部Ｃ２と、その前後両側に延在する前側部分Ｆ２及び後側部分Ｂ２とを有するものである。各部の寸法は適宜定めることができ、例えば、おむつ全長Ｌ（前後方向長さ）は３５０〜７００ｍｍ程度、おむつ全幅Ｗ１は１３０〜４００ｍｍ程度とすることができ、この場合における股間部Ｃ２の前後方向長さは１０〜１５０ｍｍ程度、前側部分Ｆ２の前後方向長さは５０〜３５０ｍｍ程度、及び後側部分Ｂ２の前後方向長さは５０〜３５０ｍｍ程度とすることができる。なお、「股間部」とは使用時に身体の股間と対応させる部分を意味し、製品によって、図示形態のように物品の前後方向中央若しくはその近傍から前側の所定部位までの範囲であったり、物品の前後方向中央の所定範囲であったりするものである。図示形態のように、物品の前後方向中間あるいは吸収体の前後方向中間に幅の狭い括れ部分を有する場合は、「股間部」は括れ部分の最小幅部位を前後方向中央とする所定の前後方向範囲を意味する。また、「前側部分（腹側部分）」は股間部よりも前側の部分を意味し、「後側部分（背側部分）」は股間部よりも後側の部分を意味する。
Hereinafter, an embodiment of the present invention will be described in detail with reference to an example of a pad-type disposable diaper shown in the accompanying drawings.
1-6 has shown the pad type disposable diaper 200. FIG. This pad-type disposable diaper 200 has a crotch portion C2, and a front portion F2 and a rear portion B2 extending on both front and rear sides thereof. The dimensions of each part can be determined as appropriate. For example, the total length L (length in the front-rear direction) of the diaper can be about 350 to 700 mm, and the total width W1 of the diaper can be about 130 to 400 mm. The length can be about 10 to 150 mm, the length of the front portion F2 in the front-rear direction can be about 50 to 350 mm, and the length of the rear portion B2 can be about 50 to 350 mm. “Crotch part” means a part corresponding to the crotch of the body at the time of use. Depending on the product, the range from the center in the front-rear direction of the article or its vicinity to a predetermined part on the front side as shown in the figure, Or a predetermined range at the center in the front-rear direction. As shown in the figure, when there is a narrow constricted portion in the middle in the front-rear direction of the article or in the middle in the front-rear direction of the absorbent body, the “groin portion” is a predetermined front-rear direction with the minimum width portion of the constricted portion as the center in the front-rear direction Means range. Further, “front part (abdominal part)” means a part on the front side of the crotch part, and “rear part (back side part)” means a part on the rear side of the crotch part.
パッドタイプ使い捨ておむつ２００は、液不透過性シート２１と、液透過性トップシート２２との間に、吸収体２３が介在された基本構造を有している。なお、図中の点模様部分は各構成部材を接合する接合部分を示しており、ホットメルト接着剤などのベタ、ビード、カーテン、サミットまたはスパイラル塗布などにより形成されるものである。 The pad-type disposable diaper 200 has a basic structure in which an absorber 23 is interposed between a liquid-impermeable sheet 21 and a liquid-permeable top sheet 22. In addition, the dot pattern part in a figure has shown the joining part which joins each structural member, and is formed by solid, beads, curtains, summits, spiral application, etc., such as a hot-melt-adhesive.
（液不透過性シート・外装シート）
吸収体２３の裏側には、液不透過性シート２１が吸収体２３の周縁より若干食み出すように設けられている。液不透過性シート２１としては、ポリエチレンフィルム等の他、ムレ防止の点から遮水性を損なわずに透湿性を備えたシートも用いることができる。この遮水・透湿性シートは、例えばポリエチレンやポリプロピレン等のオレフィン樹脂中に無機充填材を溶融混練してシートを形成した後、一軸または二軸方向に延伸することにより得られる微多孔性シートを用いることができる。
(Liquid impervious sheet / exterior sheet)
A liquid-impermeable sheet 21 is provided on the back side of the absorber 23 so as to protrude slightly from the peripheral edge of the absorber 23. As the liquid-impermeable sheet 21, a sheet having moisture permeability can be used in addition to a polyethylene film or the like without impairing the water barrier from the viewpoint of preventing stuffiness. This water-impervious / breathable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. Can be used.
また、液不透過性シート２１の外面は、不織布からなる外装シート２６により被覆することができ、この場合、液不透過性シート２１の幅を吸収体２３の幅と同程度とすることができる。外装シート２６としては各種の不織布を用いることができる。不織布を構成する素材繊維としては、ポリエチレンまたはポリプロピレン等のオレフィン系、ポリエステル系、アミド系等の合成繊維の他、レーヨンやキュプラ等の再生繊維、綿等の天然繊維を用いることができる。 Moreover, the outer surface of the liquid-impermeable sheet 21 can be covered with an exterior sheet 26 made of a non-woven fabric. In this case, the width of the liquid-impermeable sheet 21 can be made the same as the width of the absorber 23. . Various nonwoven fabrics can be used as the exterior sheet 26. As the material fiber constituting the nonwoven fabric, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and amide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.
（液透過性トップシート）
吸収体２３の表側は、液透過性トップシート２２により覆われている。図示形態ではトップシート２２の側縁から吸収体２３が一部食み出しているが、吸収体２３の側縁が食み出さないようにトップシート２２の幅を広げることもできる。トップシート２２としては、有孔または無孔の不織布や穴あきプラスチックシートなどが用いられる。不織布を構成する素材繊維としては、ポリエチレンまたはポリプロピレン等のオレフィン系、ポリエステル系、アミド系等の合成繊維の他、レーヨンやキュプラ等の再生繊維、綿等の天然繊維を用いることができる。
(Liquid permeable top sheet)
The front side of the absorber 23 is covered with a liquid-permeable top sheet 22. Although the absorber 23 partially protrudes from the side edge of the top sheet 22 in the illustrated form, the width of the top sheet 22 can be widened so that the side edge of the absorber 23 does not protrude. As the top sheet 22, a perforated or non-porous nonwoven fabric or a perforated plastic sheet is used. As the material fiber constituting the nonwoven fabric, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and amide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.
トップシート２２と吸収体２３との間には、中間シート２５を介在させるのが望ましい。この中間シート２５は、吸収体２３により吸収した尿の逆戻りを防止するために設けられるものであり、保水性が低く、且つ液透過性の高い素材、例えばメッシュフィルム等を用いるのが望ましい。トップシート２２の前端を０％としトップシート２２の後端を１００％としたとき、中間シート２５の前端は０〜１１％の範囲に位置しているのが好ましく、中間シート２５の後端は９２〜１００％の範囲に位置しているのが好ましい。また、中間シート２５の幅２５ｗは吸収体２３の幅Ｗ２の５０〜９０％程度であるのが好ましい。 It is desirable to interpose the intermediate sheet 25 between the top sheet 22 and the absorber 23. The intermediate sheet 25 is provided to prevent the urine that has been absorbed by the absorbent body 23 from returning, and it is desirable to use a material having low water retention and high liquid permeability, such as a mesh film. When the front end of the top sheet 22 is 0% and the rear end of the top sheet 22 is 100%, the front end of the intermediate sheet 25 is preferably located in the range of 0 to 11%. It is preferably located in the range of 92 to 100%. The width 25w of the intermediate sheet 25 is preferably about 50 to 90% of the width W2 of the absorber 23.
（エンドフラップ部・サイドフラップ部）
パッドタイプ使い捨ておむつ２００の前後方向両端部では、外装シート２６および液透過性トップシート２２が吸収体２３の前後端よりも前後両側にそれぞれ延在されて貼り合わされ、吸収体２３の存在しないエンドフラップ部ＥＦが形成されている。パッドタイプ使い捨ておむつ２００の両側部では、外装シート２６が吸収体２３の側縁よりも外側にそれぞれ延在され、この延在部からトップシート２２の側部までの部分の内面には側部立体ギャザーシート３１の幅方向外側の部分３４が前後方向全体にわたり貼り付けられ、吸収体２３の存在しないサイドフラップ部ＳＦを構成している。これら貼り合わせ部分は、ホットメルト接着剤、ヒートシール、超音波シールにより形成できる。外装シート２６を設けない場合、外装シート２６に代えて液不透過性シート２１をサイドフラップ部ＳＦまで延在させ、サイドフラップ部ＳＦの外面側を形成することができる。
(End flap / side flap)
At both ends in the front-rear direction of the pad-type disposable diaper 200, the exterior sheet 26 and the liquid-permeable top sheet 22 are attached to the front and rear ends of the absorbent body 23 so as to extend to the front and rear sides, respectively. Part EF is formed. On both sides of the pad-type disposable diaper 200, the exterior sheet 26 is extended outward from the side edge of the absorbent body 23, and the inner surface of the part from the extended part to the side part of the top sheet 22 is side solid. A portion 34 on the outer side in the width direction of the gather sheet 31 is pasted over the entire front-rear direction to constitute a side flap portion SF where the absorber 23 does not exist. These bonded portions can be formed by hot melt adhesive, heat sealing, or ultrasonic sealing. When the exterior sheet 26 is not provided, the liquid-impermeable sheet 21 can be extended to the side flap part SF instead of the exterior sheet 26 to form the outer surface side of the side flap part SF.
（側部立体ギャザー）
表面における両側部には、前後方向に延在する側部立体ギャザー３０がそれぞれ設けられている。側部立体ギャザー３０は上述の側部立体ギャザーシート３１により形成されている。側部立体ギャザーシート３１の幅方向中央側の部分３２はトップシート２２上にまで延在しており、その幅方向中央側の端部には、側部立体ギャザー弾性伸縮部材３３が前後方向に沿って伸張状態でホットメルト接着剤等により固定されている。
(Side three-dimensional gather)
Side solid gathers 30 extending in the front-rear direction are provided on both sides of the surface. The side solid gathers 30 are formed by the side solid gather sheets 31 described above. A portion 32 on the center side in the width direction of the side three-dimensional gather sheet 31 extends to the top sheet 22, and a side three-dimensional gather elastic elastic member 33 extends in the front-rear direction at the end on the center side in the width direction. Along with being stretched, it is fixed by a hot melt adhesive or the like.
側部立体ギャザーシート３１の素材としては、プラスチックシートやメルトブローン不織布を使用することもできるが、肌への感触性の点で、不織布にシリコンなどにより撥水処理をしたものが好適に使用される。この側部立体ギャザー弾性伸縮部材３３としては、糸状、紐状、帯状等の細長状に形成された、スチレン系ゴム、オレフィン系ゴム、ウレタン系ゴム、エステル系ゴム、ポリウレタン、ポリエチレン、ポリスチレン、スチレンブタジエン、シリコン、ポリエステル等、通常使用される素材を用いることができる。また、各平面ギャザー弾性伸縮部材７の固定時の伸長率は１７０〜２００％程度であるのが好ましい。なお、用語「伸長率」は自然長を１００％としたときの値である。 As a material of the side three-dimensional gather sheet 31, a plastic sheet or a melt blown nonwoven fabric can be used, but in terms of touch to the skin, a nonwoven fabric that is water-repellent treated with silicon or the like is preferably used. . As this side part three-dimensional gather elastic elastic member 33, a styrene rubber, an olefin rubber, a urethane rubber, an ester rubber, polyurethane, polyethylene, polystyrene, styrene formed in an elongated shape such as a thread shape, a string shape, a belt shape, or the like. Commonly used materials such as butadiene, silicon, and polyester can be used. Moreover, it is preferable that the elongation rate at the time of fixation of each planar gather elastic elastic member 7 is about 170-200%. The term “elongation rate” is a value when the natural length is 100%.
また、側部立体ギャザーシート３１は、幅方向外側の部分３４が前後方向全体にわたりおむつ内面（図示形態ではトップシート２２表面および外装シート２６内面）に貼り合わされて固定部分３４とされるとともに、幅方向中央側の部分３２がこの固定部分から突出する突出部分３２とされている。そして、この突出部分３２のうち、前後方向の両端部では倒伏状態でおむつ表面（図示形態ではトップシート２２表面）に貼り合わされて非起立部３５とされ、かつこれら非起立部３５間の部分はおむつ表面（図示形態ではトップシート２２表面）に固定されていない起立部３６とされている。この起立部３６は、側部立体ギャザー弾性伸縮部材３３の収縮力が作用することにより、図４に二点差線で示されるように、おむつ表面（図示形態ではトップシート２２表面）から起立して鼠径部等に接触する部分であり、その起立基端３７は側部立体ギャザーシート３１における固定部分３４と突出部分３２との境に位置する。 In addition, the side three-dimensional gather sheet 31 has a width direction outer portion 34 bonded to the inner surface of the diaper (in the illustrated form, the top sheet 22 surface and the outer sheet 26 inner surface) to form a fixed portion 34 and a width. A portion 32 on the center side in the direction is a protruding portion 32 protruding from the fixed portion. Of the projecting portions 32, both ends in the front-rear direction are stuck to the diaper surface (the top sheet 22 surface in the illustrated embodiment) in a lying state to form a non-standing portion 35, and the portion between the non-standing portions 35 is The standing portion 36 is not fixed to the diaper surface (the top sheet 22 surface in the illustrated embodiment). The standing portion 36 stands up from the surface of the diaper (in the illustrated form, the surface of the top sheet 22) by the contraction force of the side three-dimensional gather elastic elastic member 33 acting as shown by a two-dot chain line in FIG. The raised base end 37 is a portion that contacts the groin portion and the like, and the standing base end 37 is located at the boundary between the fixed portion 34 and the protruding portion 32 in the side three-dimensional gather sheet 31.
（平面ギャザー）
サイドフラップ部ＳＦの前後方向中間部には、側部立体ギャザーシート３１と液不透過性シート２１との間（液不透過性シート２１と外装シート２６との間でも良い）に細長状の平面ギャザー弾性伸縮部材２７が前後方向に沿って伸張状態でホットメルト接着剤等により固定されており、この平面ギャザー弾性伸縮部材２７の収縮によりサイドフラップ部ＳＦにはいわゆる平面ギャザーが形成されている。この平面ギャザーにより、おむつの側部が弾性伸縮して脚周りにフィットするようになる。
(Plane gathering)
An elongated flat surface between the side three-dimensional gather sheet 31 and the liquid-impermeable sheet 21 (may be between the liquid-impermeable sheet 21 and the exterior sheet 26) is provided in the middle part in the front-rear direction of the side flap part SF. The gather elastic elastic member 27 is fixed by a hot melt adhesive or the like in a stretched state along the front-rear direction, and a so-called flat gather is formed in the side flap portion SF by the contraction of the flat gather elastic elastic member 27. By this flat gather, the side part of the diaper is elastically stretched to fit around the leg.
左右各側における平面ギャザー弾性伸縮部材２７の本数は適宜定めることができるが、１〜１０本程度、より好ましくは２〜５本程度が適当であり、複数本とする場合には、その間隔は２〜１５ｍｍ程度、特に６〜１０ｍｍ程度とするのが好ましい。また、各平面ギャザー弾性伸縮部材２７としては、糸状、紐状、帯状等に形成された、スチレン系ゴム、オレフィン系ゴム、ウレタン系ゴム、エステル系ゴム、ポリウレタン、ポリエチレン、ポリスチレン、スチレンブタジエン、シリコン、ポリエステル等、通常使用される素材を用いることができ、太さとしては５００〜１５００ｄｔｅｘ程度、天然ゴムの場合０．１〜３ｍｍ程度、特に０．５〜３ｍｍ程度が好ましい。また、各平面ギャザー弾性伸縮部材２７の固定時の伸長率は１５０〜２５０％程度であるのが好ましい。 Although the number of the planar gather elastic elastic members 27 on the left and right sides can be determined as appropriate, about 1 to 10, more preferably about 2 to 5, is appropriate. About 2 to 15 mm, particularly about 6 to 10 mm is preferable. Further, as each planar gather elastic elastic member 27, a styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon formed in a thread shape, a string shape, a belt shape, or the like. Usually used materials such as polyester can be used, and the thickness is preferably about 500 to 1500 dtex, and in the case of natural rubber, about 0.1 to 3 mm, particularly about 0.5 to 3 mm. Moreover, it is preferable that the elongation rate at the time of fixing each planar gather elastic expansion-contraction member 27 is about 150 to 250%.
（吸収体）
吸収体２３は、下層吸収体２３Ｂと、下層吸収体２３Ｂの上に設けられた上層吸収体２３Ａとからなる二層構造となっている。
(Absorber)
The absorber 23 has a two-layer structure including a lower layer absorber 23B and an upper layer absorber 23A provided on the lower layer absorber 23B.
下層吸収体２３Ｂ及び上層吸収体２３Ａとしては、パルプ繊維の積繊体、セルロースアセテート等のフィラメントの集合体、あるいは不織布を基本とし、必要に応じて粒子状等の高吸収性ポリマーを混合、固着等してなるものを用いることができる。下層吸収体２３Ｂ及び上層吸収体２３Ａにおける繊維目付け及び高吸収性ポリマーの目付けは適宜定めることができるが、それぞれ繊維目付けは１４０〜２３０ｇ／ｍ2程度とするのが好ましく、またそれぞれ高吸収性ポリマーの目付けは６０〜９０ｇ／ｍ2程度とするのが好ましい。高吸収性ポリマー粒子を混合する場合等、必要に応じて、下層吸収体２３Ｂ及び上層吸収体２３Ａは両者一体的に又は個別にクレープ紙等の包装シート２４（図１、図７、図９参照）により包むことができる。 As the lower layer absorbent body 23B and the upper layer absorbent body 23A, pulp fiber piles, aggregates of filaments such as cellulose acetate, or non-woven fabrics are basically mixed, and if necessary, mixed with a superabsorbent polymer such as particles and fixed. And the like can be used. The fiber basis weight and the basis weight of the superabsorbent polymer in the lower layer absorbent body 23B and the upper layer absorbent body 23A can be determined as appropriate. The fiber basis weight is preferably about 140 to 230 g / m 2. Is preferably about 60 to 90 g / m 2 . The lower layer absorbent body 23B and the upper layer absorbent body 23A are integrally or individually packaged sheets 24 such as crepe paper (see FIG. 1, FIG. 7, FIG. 9). ).
また、吸収体２３の外形は、相対的に前側の部分が後側の部分よりも幅広な帯状、あるいは長方形状、台形状等、適宜の形状とすることもできるが、股間部Ｃ２を含む前後方向中間の所定部分が幅の狭い括れ部分２３ｎとして形成されていることが好ましい。この括れ部分２３ｎの最小幅Ｗ３は、括れ部分２３ｎの前後に位置する非括れ部分の幅（吸収体２３の全幅）Ｗ２の５０〜６５％程度であるのが好ましい。また、おむつ前端を０％としおむつ後端を１００％としたとき、括れ部分２３ｎの前端は１０〜２５％の範囲に位置しているのが好ましく、括れ部分２３ｎの後端は４０〜６５％の範囲に位置しているのが好ましく、括れ部分２３ｎの最小幅Ｗ３となる部位（最小幅部位）は２５〜３０％の範囲に位置しているのが好ましい。 Further, the outer shape of the absorber 23 may be an appropriate shape such as a band shape, a rectangular shape, or a trapezoidal shape in which the front portion is relatively wider than the rear portion, but before and after including the crotch portion C2. The predetermined portion in the middle of the direction is preferably formed as a narrowed portion 23n having a narrow width. The minimum width W3 of the constricted portion 23n is preferably about 50 to 65% of the width (total width of the absorber 23) W2 of the non-constricted portion located before and after the constricted portion 23n. When the front end of the diaper is 0% and the rear end of the diaper is 100%, the front end of the constricted portion 23n is preferably located in the range of 10 to 25%, and the rear end of the constricted portion 23n is 40 to 65%. It is preferable that the portion of the constricted portion 23n having the minimum width W3 (minimum width portion) is preferably in the range of 25 to 30%.
吸収体を二層構造とする場合は、下層吸収体をより大きくすることが好ましいため、図示形態のように、下層吸収体により吸収体外形を形成し、かつその形を上述のような括れ形状とし、上層吸収体の外形については括れ部分２３ｎの幅よりも狭い長方形状とすることが好ましい。 When the absorber has a two-layer structure, it is preferable to make the lower layer absorber larger. Therefore, as shown in the figure, the outer shape of the absorber is formed by the lower layer absorber, and the shape is constricted as described above. The outer shape of the upper absorbent body is preferably a rectangular shape narrower than the width of the constricted portion 23n.
吸収体２３は、股間部Ｃ２の前側から股間部Ｃ２を経て股間部Ｃ２の後側にかけて延在されているが、股間部Ｃ２から股間部Ｃ２の後側にかけて設けられていれば良い。特に男性用途を考慮するならば、陰嚢配置領域Ｃ１の前側から後側にかけて設けられていることが望ましい。ここで、「陰嚢配置領域Ｃ１」とは、装着者の陰嚢が配置される前後方向領域を意味し、従ってこれよりも前側が「陰嚢配置領域Ｃ１の前側の領域」となり、これよりも後側が「陰嚢配置領域Ｃ１の後側の領域」となる。通常の場合、陰嚢配置領域Ｃ１の前後方向長さは８０〜１００ｍｍ程度となる。 The absorber 23 extends from the front side of the crotch part C2 through the crotch part C2 to the rear side of the crotch part C2, but may be provided from the crotch part C2 to the rear side of the crotch part C2. In particular, considering male use, it is desirable that the scrotum arrangement region C1 is provided from the front side to the rear side. Here, the “scrotal placement region C1” means a front-rear direction region in which the wearer's scrotum is placed, and therefore the front side becomes “a front side region of the scrotum placement region C1”. The rear side is the “rear area of the scrotum arrangement area C1”. In a normal case, the length of the scrotum arrangement region C1 in the front-rear direction is about 80 to 100 mm.
（上層貫通部及び下層貫通部）
特徴的には、図１〜図４に示すように、下層吸収体２３Ｂにおける少なくとも股間部Ｃ２の幅方向中央部に、厚み方向に貫通する（つまり吸収体が無い）細長状の下層貫通部６０が前後方向に沿って延在されており、上層吸収体２３Ａには、少なくとも下層貫通部６０と対応する前後方向範囲内に、厚み方向に貫通する（つまり吸収体が無い）上層貫通部５０が設けられている。そして、上層貫通部５０は、下層貫通部６０上に位置し前後方向に延在する細長状の中間部分５１と、この中間部分５１における後側位置の幅方向両側に張り出した張出部分５２とを有しており、張出部分５２の側縁は、少なくとも前側の一部が後側に向かうにつれて幅方向外側に位置する形状とされている。
(Upper layer penetration and lower layer penetration)
Characteristically, as shown in FIGS. 1 to 4, an elongated lower layer penetrating portion 60 penetrating in the thickness direction (that is, having no absorber) at least in the widthwise central portion of the crotch portion C2 in the lower layer absorber 23B. Is extended along the front-rear direction, and the upper-layer absorber 23A has an upper-layer through portion 50 penetrating in the thickness direction (that is, having no absorber) within at least the front-rear direction range corresponding to the lower layer through-portion 60. Is provided. The upper layer penetrating portion 50 includes an elongated intermediate portion 51 that is located on the lower layer penetrating portion 60 and extends in the front-rear direction, and an overhang portion 52 that projects to both sides in the width direction of the rear position of the intermediate portion 51. The side edge of the overhang portion 52 has a shape that is positioned on the outer side in the width direction as at least a part of the front side goes to the rear side.
このような二層構造の吸収体２３では、下層貫通部６０及び上層貫通部５０の中間部分５１の重なり部分には吸収体２３が無く、上層貫通部５０の張出部分５２の部位は下層吸収体２３Ｂの一層構造となり、上層貫通部５０の張出部分５２の外側は上層吸収体２３Ａ及び下層吸収体２３Ｂの二層構造となる。図６〜図９に示すように、装着状態で使い捨ておむつが両脚間に挟まれて幅方向に圧縮（図７、図９の白抜き矢印参照）されたときには、下層貫通部６０及び上層貫通部５０の中間部分５１の重なり部分には吸収体２３が無いため、下層貫通部６０及び上層貫通部５０の両側縁は圧縮量に応じて接近し、使い捨ておむつの表面に細い溝７１が形成される。このとき、上層貫通部５０の張出部分５２に位置する一層構造部分２３ｗにも互いに接近する方向に力が作用するものの、上層貫通部５０の張出部分５２の側縁は少なくとも前側の一部が後側に向かうにつれて幅方向外側に位置する形状（つまり右側については右斜め後ろ向き、左側については左斜め後ろ向き）とされることにより、一層構造部分２３ｗが、二層構造部分との境界である上層貫通部５０の張出部分５２の側縁に沿って裏側に折れ曲がり易くなっているため、一層構造部分２３ｗがその幅方向外側の二層構造部分に対して裏側に折れ曲がり、これに伴い一層構造部分２３ｗの間の無吸収体部分が裏側に向かって落ち込み、図６及び図８に示すように、使い捨ておむつの表面にほぼ舟形の窪み７２が形成される。このような変形は、上層貫通部５０の張出部分５２が矩形状（つまり張出部分５２の側縁はコ字状）では起こり難いものである。そして、このような舟形の窪みは幅方向の圧縮に対して復元し易いだけでなく、裏側に折れ曲がった一層構造部分２３ｗが壁となって窪みの深さが維持されるため、表面間隙の維持性に優れる。排尿時には、当該窪み領域の前側に排泄された尿のうち吸収されずに表面を移動する分は、この大きな表面間隙を流路として後側に流れ、その過程で後側の吸収体２３により吸収される。よって、従来問題となっていた表面間隙の少なさによる拡散阻害を効果的に防止することができる。 In the absorber 23 having such a two-layer structure, there is no absorber 23 in the overlapping portion of the intermediate portion 51 of the lower layer penetrating portion 60 and the upper layer penetrating portion 50, and the portion of the protruding portion 52 of the upper layer penetrating portion 50 is the lower layer absorption. The body 23B has a single layer structure, and the outer side of the overhanging portion 52 of the upper layer penetrating portion 50 has a two layer structure of an upper layer absorber 23A and a lower layer absorber 23B. As shown in FIGS. 6 to 9, when the disposable diaper is sandwiched between both legs in the mounted state and compressed in the width direction (see the white arrows in FIGS. 7 and 9), the lower layer through portion 60 and the upper layer through portion Since there is no absorber 23 in the overlapping part of the intermediate part 51 of 50, the both side edges of the lower layer penetration part 60 and the upper layer penetration part 50 approach according to the amount of compression, and a thin groove 71 is formed on the surface of the disposable diaper. . At this time, although a force acts on the single-layer structure portion 23w located in the overhanging portion 52 of the upper layer penetrating portion 50 in a direction approaching each other, the side edge of the overhanging portion 52 of the upper layer penetrating portion 50 is at least a part of the front side. Is formed in a shape located on the outer side in the width direction toward the rear side (that is, the right side is obliquely rearward and the left side is obliquely rearward), so that the one-layer structure portion 23w is a boundary with the two-layer structure portion. Since it is easy to bend to the back side along the side edge of the overhanging portion 52 of the upper layer penetration portion 50, the one-layer structure portion 23w bends to the back side with respect to the two-layer structure portion on the outer side in the width direction. The non-absorbent part between the parts 23w falls toward the back side, and as shown in FIGS. 6 and 8, a substantially boat-shaped depression 72 is formed on the surface of the disposable diaper. Such deformation is unlikely to occur when the protruding portion 52 of the upper layer penetrating portion 50 is rectangular (that is, the side edge of the protruding portion 52 is U-shaped). Such a boat-shaped depression is not only easily restored to compression in the width direction, but also the depth of the depression is maintained by the one-layer structure portion 23w bent to the back side, so that the surface gap is maintained. Excellent in properties. During urination, the portion of the urine excreted in front of the depression area that moves on the surface without being absorbed flows to the rear side through this large surface gap, and is absorbed by the rear-side absorber 23 in the process. Is done. Therefore, it is possible to effectively prevent the diffusion inhibition due to the small surface gap, which has been a problem in the past.
下層貫通部６０の形状は細長状である限り、図示形態のように幅が前後方向に一定の長方形状とする他、幅が前後方向に変化する（例えば後に向かうにつれて幅が拡大する）形状とする等、適宜変更が可能である。下層貫通部６０の寸法は適宜定めることができるが、この種の使い捨ておむつを用いる標準的な成人を考慮すると、前後方向長さ６２は１８０〜２１０ｍｍ程度とするのが好ましい。また、下層貫通部６０の幅６１は適宜定めることができるが、余り広くないほうが後述する隙間の形状維持性が良いため、通常の場合は２０〜４０ｍｍ程度とするのが好ましい。 As long as the shape of the lower layer penetrating portion 60 is an elongated shape, in addition to a rectangular shape having a constant width in the front-rear direction as shown in the figure, a shape in which the width changes in the front-rear direction (for example, the width increases toward the rear) It can be changed as appropriate. Although the dimension of the lower layer penetration part 60 can be determined suitably, when the standard adult using this kind of disposable diaper is considered, it is preferable that the front-back direction length 62 shall be about 180-210 mm. Moreover, although the width 61 of the lower layer penetration part 60 can be determined suitably, since the shape maintenance property of the clearance gap mentioned later is better when it is not so wide, it is preferably about 20 to 40 mm in a normal case.
また、下層貫通部６０は、下層吸収体２３Ｂの前後方向中間に設けられている、つまり下層貫通部６０が下層吸収体２３Ｂの前後に突き抜けない配置とすることにより、吸収体２３全体としての剛性が確保される。 Moreover, the lower layer penetration part 60 is provided in the middle in the front-rear direction of the lower layer absorber 23B, that is, the lower layer penetration part 60 is arranged so that it does not penetrate through the lower layer absorber 23B. Is secured.
一方、上層貫通部５０の寸法は適宜定めることができ、前後方向長さ（中間部分５１も同様となる）は図示形態のように下層貫通部６０と同じとする他、下層貫通部６０よりも短く又は長くすることもできる。 On the other hand, the dimension of the upper layer penetrating portion 50 can be determined as appropriate, and the length in the front-rear direction (the same applies to the intermediate portion 51) is the same as that of the lower layer penetrating portion 60 as shown in the figure. It can be shortened or lengthened.
上層貫通部５０の中間部分５１の幅５５は、下層貫通部６０の幅６１以上であることが望ましく、張出部分５２を確保することも考慮すると、下層貫通部６０の幅６１の１．２〜１．５倍程度とすることが望ましい。上層貫通部５０の張出部分５２を有する部分の幅５６（中間部分５１の幅及び張出部分５２の幅の総和）は、窪みの寸法（主に壁の高さ）や窪みの形状維持性を考慮して定めることが望ましく、中間部分５１の幅５５の１．５〜２倍程度、より具体的には３６〜１２０ｍｍ程度とすることが望ましい。 The width 55 of the intermediate portion 51 of the upper layer penetrating portion 50 is preferably equal to or larger than the width 61 of the lower layer penetrating portion 60. In consideration of securing the protruding portion 52, the width 61 of the lower layer penetrating portion 60 is 1.2. It is desirable to be about 1.5 times. The width 56 (the sum of the width of the intermediate portion 51 and the width of the overhanging portion 52) of the portion having the overhanging portion 52 of the upper layer penetrating portion 50 is the size of the depression (mainly the height of the wall) and the shape maintenance of the depression. It is desirable to set the width of the intermediate portion 51 in consideration of 1.5 to 2 times, more specifically, about 36 to 120 mm.
上層貫通部５０の張出部分５２の前後方向位置は適宜定めることができ、図示例のように上層貫通部５０の後側位置を側方に拡張しても良いが、前後方向中間位置を側方に拡張して形成することも可能である。また、図示形態の上層貫通部５０の前側に中間部分５１を延長するとともに、その幅方向両側に、後側位置の張出部分５２と前後対称的な形状で張出部分を追加し、装着状態で一対の舟形の窪みが細い溝７１を長手方向に挟んで対向する（略砂時計状の窪みが形成される）ように構成しても良い。 The position in the front-rear direction of the overhanging portion 52 of the upper layer penetrating portion 50 can be determined as appropriate, and the rear position of the upper layer penetrating portion 50 may be expanded to the side as shown in the example, but It is also possible to extend it in the direction. In addition, the intermediate portion 51 is extended to the front side of the upper layer penetrating portion 50 in the illustrated form, and overhang portions are added to both sides in the width direction in a shape symmetrical with the overhang portion 52 at the rear side position, A pair of boat-shaped depressions may be opposed to each other with a narrow groove 71 in the longitudinal direction (a substantially hourglass-shaped depression is formed).
上層貫通部５０の中間部分５１のうち張出部分５２の無い部分の形状は、図示形態のように幅が前後方向に一定の長方形状とする他、幅が前後方向に変化する（例えば後に向かうにつれて幅が拡大する）形状とする等、適宜変更が可能である。上層貫通部５０の張出部分５２の形状は、張出部分５２の側縁における少なくとも前側の一部が後側に向かうにつれて幅方向外側に位置する形状とされている限り、側縁形状が図示形態のような屈曲線状であっても、円弧状などの曲線状であっても良い。図示形態では、中間部分５１との境界を下底とし、後縁が下底と直交する台形状（張出部分５２及びその間の中間部分５１を含めた形状は５角形状）とされているが、図１０（ａ）に示すような台形状（張出部分５２及びその間の中間部分５１を含めた形状は六角形状）とすることもできる。 Of the intermediate portion 51 of the upper layer penetrating part 50, the shape of the portion without the protruding portion 52 is a rectangular shape whose width is constant in the front-rear direction as shown in the figure, and the width changes in the front-rear direction (for example, backward) The shape can be appropriately changed, such as a shape whose width increases as the height increases. The shape of the overhanging portion 52 of the upper layer penetrating portion 50 is shown in the side edge shape as long as at least a part of the front side of the overhanging portion 52 is located on the outer side in the width direction toward the rear side. It may be a bent line shape such as a form or a curved shape such as an arc shape. In the illustrated embodiment, the boundary with the intermediate portion 51 is a lower base, and the trailing edge is a trapezoidal shape (the shape including the protruding portion 52 and the intermediate portion 51 therebetween is a pentagonal shape). The trapezoidal shape (the shape including the overhanging portion 52 and the intermediate portion 51 therebetween is a hexagonal shape) as shown in FIG.
上層貫通部５０の前端（中間部分５１の前端）は下層貫通部６０の前端と同じかそれよりも後側に位置される。上層貫通部５０の後端は図示形態のように下層貫通部６０の後端と同じとするか、それよりも後側に位置させることが好ましいが、それよりも前側に位置させることも好ましい。後者の例として、図１０（ｂ）に示すように、下層貫通部６０を上層貫通部５０の後端よりも後側かつ股間部Ｃ２よりも後側に延在させた形態（符号６０ｘはこの延在部分を示している）を挙げることができ、この場合には尿が下層貫通部６０を通り上層吸収体２３Ａの下側に入ると、肌側への逆戻りが上層吸収体２３Ａにより遮断されることになる。 The front end of the upper layer penetrating portion 50 (the front end of the intermediate portion 51) is located at the same side as the front end of the lower layer penetrating portion 60 or on the rear side. The rear end of the upper layer penetrating portion 50 is preferably the same as the rear end of the lower layer penetrating portion 60 as shown in the drawing, or is located on the rear side, but is preferably located on the front side. As an example of the latter, as shown in FIG. 10 (b), the lower layer penetrating portion 60 extends rearward from the rear end of the upper layer penetrating portion 50 and rearward of the crotch portion C2. In this case, when urine passes through the lower layer penetration part 60 and enters the lower side of the upper layer absorbent body 23A, the return to the skin side is blocked by the upper layer absorbent body 23A. Will be.
また、図示形態のように、上層貫通部５０の中間部分５１は上層吸収体２３Ａの前端まで延在され、かつ上層吸収体２３Ａの前端に開口されており、上層吸収体２３Ａの前端は、下層貫通部６０の前端と同じか後側に位置されていると、股間部Ｃ２が幅方向の圧縮されたとき、上層吸収体２３Ａの前側ほど、かつ上層貫通部５０の前側ほど圧縮され易くなり、その結果として、前述の舟形の窪みが形成され易くなるため好ましい。 Further, as shown in the figure, the intermediate portion 51 of the upper layer penetrating portion 50 extends to the front end of the upper layer absorber 23A and is opened at the front end of the upper layer absorber 23A, and the front end of the upper layer absorber 23A is the lower layer absorber. When the crotch portion C2 is compressed in the width direction when the front end of the penetrating portion 60 is located on the same side or on the rear side, the front side of the upper layer absorbent body 23A and the front side of the upper layer penetrating portion 50 are easily compressed. As a result, the aforementioned boat-shaped depression is easily formed, which is preferable.
（股間部立体ギャザー）
また、図示形態では、上層貫通部５０の側方から突出する突出部分４２が前後方向に延在されるとともに、この突出部分４２の前側及び後側に位置する部分がそれぞれ倒伏状態で固定された非起立部４５とされ、これら非起立部４５間の部分が非固定の起立部４６とされ、且つこの起立部４６にギャザー弾性伸縮部材４３が前後方向に伸張した状態で固定された股間部立体ギャザー４０が、表面の幅方向両側に設けられている。起立部４６は、ギャザー弾性伸縮部材４３の収縮力が作用することにより、図４に二点差線で示されるように、おむつ表面から立ち上がる部分である。
(Crotch three-dimensional gather)
Further, in the illustrated embodiment, the protruding portion 42 protruding from the side of the upper layer penetrating portion 50 extends in the front-rear direction, and the portions located on the front side and the rear side of the protruding portion 42 are fixed in a lying state. A crotch portion solid body that is a non-standing portion 45, a portion between the non-standing portions 45 is a non-fixed standing portion 46, and the gather elastic elastic member 43 is fixed to the standing portion 46 in a state of extending in the front-rear direction. The gathers 40 are provided on both sides in the width direction of the surface. The standing portion 46 is a portion that rises from the surface of the diaper as shown by a two-dot chain line in FIG. 4 when the contraction force of the gather elastic elastic member 43 acts.
股間部立体ギャザー４０は設けなくても良いが、上層貫通部５０及び下層貫通部６０により股間部Ｃ２の吸収量は低下せざるを得ず、尿が移動し易くなるため、側部立体ギャザー３０とは別に設けた方が好ましい。 The crotch three-dimensional gather 40 may not be provided, but the amount of absorption of the crotch C2 is inevitably reduced by the upper layer penetrating part 50 and the lower layer penetrating part 60, and the urine easily moves. It is preferable to provide it separately.
股間部立体ギャザー４０は、専用のシートをおむつ表面に取り付けて形成しても良いが、図示形態のように、トップシート２２における上層貫通部５０より側方の部分を折り出して、突出部分４２を形成するのが好ましい。 The crotch portion three-dimensional gather 40 may be formed by attaching a dedicated sheet to the diaper surface, but as shown in the figure, the side portion of the top sheet 22 from the upper layer penetrating portion 50 is folded to project the protruding portion 42. Is preferably formed.
股間部立体ギャザー４０を設ける場合、上層貫通部５０の張出部分５２が、前後方向において股間部立体ギャザー４０の非起立部４５間に位置していると（換言すれば上層貫通部５０の張出部分５２の幅方向位置と股間部立体ギャザー４０の非起立部４５の幅方向位置とが重なると）、股間部立体ギャザー４０のギャザー弾性伸縮部材４３の収縮力が一層構造部分２３ｗに効果的に作用し、前述の舟形窪みの形成が促進され、また窪みの形状維持性が向上するため好ましい。しかし、股間部立体ギャザー４０の非起立部４５が上層貫通部５０の張出部分５２より幅方向中央側又は外側に位置していても良い。 When the crotch part three-dimensional gather 40 is provided, the overhanging part 52 of the upper layer penetration part 50 is located between the non-standing parts 45 of the crotch part three-dimensional gather 40 in the front-rear direction (in other words, the tension of the upper layer penetration part 50). When the position in the width direction of the protruding portion 52 and the position in the width direction of the non-standing portion 45 of the crotch portion three-dimensional gather 40 overlap), the contraction force of the gather elastic elastic member 43 of the crotch portion three-dimensional gather 40 is more effective for the structural portion 23w. This is preferable because the formation of the boat-shaped depression described above is promoted and the shape maintainability of the depression is improved. However, the non-standing part 45 of the crotch part three-dimensional gather 40 may be located in the width direction center side or the outer side from the overhang | projection part 52 of the upper layer penetration part 50. FIG.
また、股間部立体ギャザー４０における突出部分４２の基端の幅方向位置は、図示形態のように、張出部分５２から側方に離間していることが望ましいが、張出部分５２の側縁に合わせたり、張出部分５２内に位置させたりすることもできる。特に、股間部立体ギャザー４０における突出部分４２の基端の幅方向位置は、展開状態で、上層貫通部５０の張出部分５２の外側で上層吸収体２３Ａ及び下層吸収体２３Ｂの二層構造部分上が最も好ましい。また、股間部立体ギャザー４０における突出部分４２の先端の幅方向位置は、展開状態で、一層構造部分２３ｗ上を通る位置とすることが最も好ましい。これらの配置とすることで、一層構造部分２３ｗが二層構造部分との境界である上層貫通部５０の張出部分５２の側縁に沿って裏側に折れ曲がりやすくなるため、舟形の窪み７２の形成及び維持がより良好となる。 Further, the width direction position of the base end of the protruding portion 42 in the crotch portion three-dimensional gather 40 is desirably spaced laterally from the overhanging portion 52 as illustrated, but the side edge of the overhanging portion 52 Or can be positioned within the overhanging portion 52. In particular, the position in the width direction of the base end of the projecting portion 42 in the crotch portion three-dimensional gather 40 is the two-layer structure portion of the upper layer absorbent body 23A and the lower layer absorbent body 23B outside the projecting portion 52 of the upper layer through portion 50 in the unfolded state. The top is most preferred. Moreover, it is most preferable that the position in the width direction of the tip of the protruding portion 42 in the crotch portion three-dimensional gather 40 is a position that passes over the one-layer structure portion 23w in the unfolded state. With these arrangements, the one-layer structure portion 23w can easily be bent to the back side along the side edge of the overhang portion 52 of the upper layer through portion 50 that is the boundary with the two-layer structure portion. And better maintenance.
股間部立体ギャザー４０におけるギャザー弾性伸縮部材４３の素材及び固定時の伸長率としては、側部立体ギャザー３０と同様の素材、範囲の中から適宜選択して用いることができる。 The material of the gather elastic elastic member 43 in the crotch portion three-dimensional gather 40 and the elongation ratio at the time of fixation can be appropriately selected from the same materials and ranges as those of the side three-dimensional gather 30.
股間部立体ギャザー４０の各部の寸法は適宜定めることができるが、この種の使い捨ておむつを用いる標準的な成人を考慮すると、非起立部４５の前後方向間隔は１５０〜１８０ｍｍ程度とするのが好ましく、突出部分４２の基端の幅方向間隔は６０〜８０ｍｍ程度とするのが好ましい。また、側部立体ギャザー３０の起立部３６が、股間部立体ギャザー４０の起立部４６よりも前方及び後方にそれぞれ延在するように構成するのが好ましい。 The dimensions of each part of the crotch three-dimensional gather 40 can be determined as appropriate. However, in consideration of a standard adult using this type of disposable diaper, the interval between the non-standing parts 45 is preferably about 150 to 180 mm. The width direction interval of the base end of the protruding portion 42 is preferably about 60 to 80 mm. Further, it is preferable that the standing portion 36 of the side three-dimensional gather 30 extends forward and rearward from the standing portion 46 of the crotch three-dimensional gather 40.
図示例では、製造時に使い捨ておむつの前後方向に沿って素材を搬送しつつ組み立てる一般的な製造形態を考慮し、股間部立体ギャザー４０は使い捨ておむつの全長Ｌに及んでいる（ただし、非起立部４５の前後方向長さが側部立体ギャザー３０よりも長い）が、上層貫通部５０の張出部分５２を有する前後方向範囲を基準として、その前側近傍から後側近傍までの長さとしても良い。 In the illustrated example, the crotch three-dimensional gather 40 extends over the entire length L of the disposable diaper in consideration of a general manufacturing form in which materials are assembled while being transported along the front-rear direction of the disposable diaper at the time of manufacture (however, the non-standing part) 45 is longer than the side three-dimensional gather 30), and the length from the front side vicinity to the rear side vicinity may be set on the basis of the front-rear direction range having the protruding portion 52 of the upper layer penetrating part 50. .
本発明は、パッドタイプ、パンツタイプ若しくはテープタイプ等、使い捨ておむつ全般に利用できるものである。 INDUSTRIAL APPLICABILITY The present invention can be used for all disposable diapers such as a pad type, a pants type, or a tape type.
Ｂ２…後側部分、Ｃ１…陰嚢配置領域、Ｃ２…股間部、Ｆ２…前側部分、 ２１…液不透過性シート、２２…トップシート、２３…吸収体、２３Ａ…上層吸収体、２３Ｂ…下層吸収体、２３ｎ…括れ部分、２３ｗ…一層構造部分、２５…中間シート、２６…外装シート、３０…側部立体ギャザー、３１…側部立体ギャザーシート、３３…ギャザー弾性伸縮部材、４０…股間部立体ギャザー、４２…突出部分、４３…ギャザー弾性伸縮部材、５０…上層貫通部、５１…中間部分、５２…張出部分、６０…下層貫通部。 B2 ... Rear side part, C1 ... Scrotum arrangement area, C2 ... Crotch part, F2 ... Front side part, 21 ... Liquid impervious sheet, 22 ... Top sheet, 23 ... Absorber, 23A ... Upper layer absorber, 23B ... Lower layer Absorber, 23n ... Constricted portion, 23w ... Single layer structure portion, 25 ... Intermediate sheet, 26 ... Exterior sheet, 30 ... Side solid gather, 31 ... Side solid gather sheet, 33 ... Gather elastic elastic member, 40 ... Crotch Three-dimensional gather, 42 ... projecting part, 43 ... gather elastic elastic member, 50 ... upper layer penetration part, 51 ... middle part, 52 ... overhang part, 60 ... lower layer penetration part.
Claims (3)
前記股間部から前記後側部分にかけて、尿を吸収する吸収体を備えた、使い捨ておむつにおいて、
前記吸収体として、下層吸収体と、下層吸収体の上に設けられた上層吸収体とを備えており、
前記下層吸収体には、少なくとも股間部の幅方向中央部に、厚み方向に貫通する細長状の下層貫通部が前後方向に沿って延在されており、
前記上層吸収体には、少なくとも前記下層貫通部と対応する前後方向範囲内に、厚み方向に貫通する上層貫通部が設けられており、
前記上層貫通部は、前記下層貫通部上に位置し前後方向に延在する細長状の中間部分と、この中間部分における前後方向中間位置または後側位置の幅方向両側に張り出した張出部分とを有しており、
前記張出部分の側縁は、少なくとも前側の一部が後側に向かうにつれて幅方向外側に位置する形状とされており、
前記上層貫通部の前記中間部は、前記上層吸収体の前端まで延在され、かつ前記上層吸収体の前端に開口されており、
前記上層吸収体の前端は、前記下層貫通部の前端と同じか後側に位置されており、
前記下層貫通部は、前記下層吸収体の前後方向中間に設けられており、
前記吸収体は、前記上層貫通部の張出部分の領域が前記下層吸収体による一層構造とされるとともに、前記上層貫通部の張出部分の幅方向外側が前記上層吸収体及び下層吸収体による二層構造とされている、
ことを特徴とする使い捨ておむつ。 Having a crotch portion and a rear portion extending to the rear side of the crotch portion,
In the disposable diaper provided with an absorber that absorbs urine from the crotch part to the rear side part,
As the absorber, comprising a lower layer absorber, and an upper layer absorber provided on the lower layer absorber,
In the lower layer absorbent body, an elongated lower layer penetration part penetrating in the thickness direction is extended along the front-rear direction at least in the width direction central part of the crotch part,
The upper layer absorbent body is provided with an upper layer penetrating portion penetrating in the thickness direction within at least the front-rear direction range corresponding to the lower layer penetrating portion,
The upper layer penetrating portion is an elongated middle portion that is located on the lower layer penetrating portion and extends in the front-rear direction, and a projecting portion that projects in the width direction both sides in the front-rear direction middle position or the rear side position in the middle portion. Have
The side edge of the overhanging portion has a shape that is positioned on the outer side in the width direction as at least a part of the front side goes to the rear side,
The intermediate portion of the upper layer penetrating portion extends to the front end of the upper layer absorber, and is open to the front end of the upper layer absorber.
The front end of the upper layer absorber is located on the same side or the rear side of the front end of the lower layer penetration,
The lower layer penetration part is provided in the middle of the lower layer absorber in the front-rear direction ,
In the absorber, the region of the protruding portion of the upper layer penetrating portion is a single layer structure by the lower layer absorber, and the outer side in the width direction of the protruding portion of the upper layer penetrating portion is by the upper layer absorber and the lower layer absorber. It has a two-layer structure ,
A disposable diaper characterized by that.
前記上層貫通部の張出部分は、前後方向において前記股間部立体ギャザーの非起立部間に位置している、
請求項１記載の使い捨ておむつ。 A protruding portion protruding from the side of the upper layer penetrating portion extends in the front-rear direction, and the portions located on the front side and the rear side of the protruding portion are non-standing portions fixed in a lying state, respectively. The part between the standing parts is a non-fixed standing part, and the crotch part three-dimensional gather fixed to the standing part with the gather elastic elastic member extended in the front-rear direction is provided on both sides in the width direction of the surface. ,
The overhanging portion of the upper layer penetrating portion is located between the non-standing portions of the crotch portion three-dimensional gather in the front-rear direction.
The disposable diaper according to claim 1.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014103473A JP5621067B1 (en) | 2014-05-19 | 2014-05-19 | Disposable diapers |
| CN201410832009.9A CN104739582B (en) | 2013-12-27 | 2014-12-26 | Disposable urine napkin |
| US15/108,463 US10758427B2 (en) | 2013-12-27 | 2014-12-26 | Disposable diaper |
| PCT/JP2014/084450 WO2015099103A1 (en) | 2013-12-27 | 2014-12-26 | Disposable nappy |
| KR1020167020434A KR102332161B1 (en) | 2013-12-27 | 2014-12-26 | Disposable nappy |
| CN201420848171.5U CN204468454U (en) | 2013-12-27 | 2014-12-26 | Disposable urine napkin |
| EP14875551.5A EP3087962B1 (en) | 2013-12-27 | 2014-12-26 | Disposable nappy |
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| JP2014103473A JP5621067B1 (en) | 2014-05-19 | 2014-05-19 | Disposable diapers |
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| JP2013273417 Division | 2013-12-27 | 2013-12-27 |
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