JP2020108751A - テープ型おむつ - Google Patents
テープ型おむつ Download PDFInfo
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Abstract
Description
本テープ型おむつでは、伸縮部材が吸収体の背側領域の低坪量域に重なる。そのため、装着後に高吸水性ポリマーが膨潤し、低坪量域が膨潤しても、伸縮部材が幅方向の収縮力により肌側へ向かうことに伴い、低坪量域も肌面へ押し付けられることにより、背側部が外側へ飛び出したような形状に変形することをより抑制できる。それにより、フィット性が損なわれることをより抑制でき、背側部と肌面との間に生じた隙間から液体が漏れることをより抑制できる。
本テープ型おむつでは、伸縮部材が吸収体よりも非肌側に位置する。そのため、装着後に高吸水性ポリマーが膨潤し、低坪量域が膨潤しても、伸縮部材が幅方向の収縮力により肌側へ向かうことに伴い、低坪量域も伸縮部材により非肌側から肌側へ押されて肌面に押し付けられることにより、背側部が外側へ飛び出したような形状に変形することをより抑制できる。それにより、フィット性が損なわれることをより抑制でき、背側部と肌面との間に生じた隙間から液体が漏れることをより抑制できる。
本テープ型おむつでは、伸縮部材が吸収体の非肌側の表面と直接接合されているので、伸縮部材の伸縮力を吸収体に直接伝達することができる。そのため、装着後に高吸水性ポリマーが膨潤し、低坪量域が膨潤しても、低坪量域が伸縮部材により非肌側から肌側へ押されて肌面により確実に押し付けられることにより、背側部が外側へ飛び出したような形状に変形することをより確実に抑制できる。それによりフィット性が損なわれることをより抑制でき、背側部と肌面との間に生じた隙間から液体が漏れることをより抑制できる。
本テープ型おむつでは、伸縮部材の低伸縮域が低坪量域と重なっている。それゆえ、伸縮部材全体が収縮しても、低坪量域(吸収体)を収縮し難くすることができるので、低坪量域(吸収体)が収縮し易くなり装着前に皺が生じたり、生じた皺で液体の吸収が部分的に集中して背側部3が外側に飛び出したような形状に変形したりすることを抑制できる。すなわち、装着後に高吸水性ポリマーが膨潤し、低坪量域が膨潤しても、背側部が外側へ飛び出したような形状に変形することをより抑制できる。それにより、フィット性が損なわれることをより抑制でき、背側部と肌面との間に生じた隙間から液体が漏れることをより抑制できる。
本テープ型おむつでは、伸縮部材における吸収体と重なる部分の長さは、吸収体と重ならない部分の長さよりも短い。そのため、伸縮部材が全体として収縮しても、低坪量域(吸収体)を収縮し難くすることができる。それにより、低坪量域が収縮し易くなり装着前に皺が生じたり、生じた皺で液体の吸収が部分的に集中して背側部3が外側に飛び出したような形状に変形したりすることを抑制できる。すなわち、装着後に高吸水性ポリマーが膨潤し、低坪量域が膨潤しても、伸縮部材により、背側部が外側へ飛び出したような形状に変形することをより抑制できる。それにより、フィット性が損なわれることをより抑制でき、背側部と肌面との間に生じた隙間から液体が漏れることをより抑制できる。
前記低坪量域は、前記伸縮部材と非接合である、上記(2)又は(3)に記載のテープ型おむつ、であってもよい。
本テープ型おむつでは、伸縮部材が吸収体よりも肌側に位置する。そのため、装着後に高吸水性ポリマーが膨潤し、低坪量域が膨潤しても、伸縮部材が幅方向の収縮力により肌側へ向かうことに伴い、低坪量域も肌面へ引っ張られることで、背側部が外側へ飛び出したような形状に変形することを抑制できる。また、本テープ型おむつは、吸収体の低坪量域が伸縮部材と非接合である。そのため、低坪量域と伸縮部材との間にポケット状の部分を形成できる。それにより、伸縮部材の伸縮力により、背側部を装着者の肌に密着させつつ、背側部に達する液体をポケット状の部分で受け止めることができる。したがって、フィット性が損なわれることをより抑制でき、背側部と肌面との間に生じた隙間から液体が漏れることをより抑制できる。
本テープ型おむつでは、吸収体が第1吸収層と第2吸収層とが積層された二層構造を有し、低坪量域が、平面視で、第2吸収層の端部のうちの第1吸収層の端縁よりも外側に突出した突出部に含まれる。そのため、低坪量域の厚さを確実に薄くすることができる。それにより、背側部が外側へ飛び出したような形状に変形することを抑制できる。よって、フィット性が損なわれることを抑制でき、背側部と肌面との間に生じた隙間から液体が漏れることを抑制できる。
本テープ型おむつでは、第2吸収層の肌側に、不織布の中間層を備え、低坪量域の肌側の面は不織布(中間層)で覆われている。そのため、低坪量域の高吸水性ポリマーをより動き難くすることができ、それにより、低坪量域の厚さをより確実に薄く維持することができる。また、背側部が肌面に密着したとき、吸収体の低坪量域が肌面へ押し付けられても、低坪量域の肌側の面が不織布で覆われているので、高吸水性ポリマーによる凹凸を感じず、装着時の違和感を覚え難くすることができる。それにより、フィット性が損なわれることを抑制でき、背側部と肌面との間に生じた隙間から液体が漏れることを抑制できる。
まず、第2基材46用シートを長手方向Lに移動させつつ、ホットメルト接着剤を第2基材46用シートの上に塗布する。次いで、高吸水性ポリマー供給装置から高吸水性ポリマーを、ホットメルト接着剤を塗布された第2基材46用シートにおける幅方向Wの両端部分及び中央部分の上に、それぞれ長手方向Lに沿って散布する。このとき、両端部分と中央部分との間の領域(チャネルに相当)には少量の高吸水性ポリマーが移行する。次いで、両面にホットメルト接着剤が塗布された中間層43用シートを、第2基材46用シート上の高吸水性ポリマーの上に積層する。次いで、その積層物を長手方向Lに移動させつつ、他の高吸水性ポリマー供給装置から高吸水性ポリマーを、ホットメルト接着剤を塗布された中間層43用シートにおける幅方向Wの中央部分の上に長手方向Lに沿って散布する。次いで、中間層43用シート上の高吸水性ポリマーの上に、ホットメルト接着剤を塗布した第1基材44用シートを、ホットメルト接着剤を高吸水性ポリマー側にして積層する。そして、第2基材46用シートにおける幅方向Wの両側部を、第1基材44用シートにおける幅方向Wの両側部の上に折り返して、積層物を得る。その後、一対のプレスロールに積層物を通過させる、すなわちプレスすることにより、積層物の厚さを調整して、吸収体14を得る。
上記のように作製した吸収体14の上面(第1基材44の表面)に、液透過性の表面シート12を貼り付け、吸収体14の下面(第2基材46の表面)に伸縮部材6液不透過性の裏面シート13を貼り付けて、積層体を得る。次いで、防漏壁16及び係合部材7付きサイドシート17を、積層体の幅方向Wの両側に取り付け、吸収性本体10を得る。その後、吸収性本体10をカバーシート5(弾性部材8及び接合対象部材18を含む)上に貼り付け、カバーシート5と吸収性本体10とを接合する。それにより、テープ型おむつ1が製造される。
2 腹側部
3 背側部
4 股間部
7 係止部材
10 吸収性本体
14 吸収体
BA 背側領域
BAb (背側)低坪量域
FA 腹側領域
MA 股間領域
Claims (10)
- 互いに直交する長手方向、幅方向及び厚さ方向を有し、吸収体を含み、前記長手方向における前側に位置する腹側部、後側に位置する背側部、及び前記腹側部と前記背側部との間に位置する股間部を有する吸収性本体と、前記背側部における前記幅方向の両外側に位置する一対の係止部材と、を備える、テープ型おむつであって、
前記吸収体は、
高吸水性ポリマーを含み、
股間領域と、
前記股間領域の前記長手方向の後側に隣接する背側領域と、
前記股間領域の前記長手方向の前側に隣接する腹側領域と、を備え、
前記背側領域は、前記股間領域よりも前記高吸水性ポリマーの坪量が低い低坪量域を含み、
前記幅方向において、前記一対の係止部材は、前記低坪量域と重なる、
テープ型おむつ。 - 前記背側部における前記一対の係止部材の間に、前記幅方向に伸縮可能な伸縮部材を更に備え、
前記伸縮部材は、平面視で、前記低坪量域に重なる、
請求項1に記載のテープ型おむつ。 - 互いに直交する長手方向、幅方向及び厚さ方向を有し、吸収体を含み、前記長手方向における前側に位置する腹側部、後側に位置する背側部、及び前記腹側部と前記背側部との間に位置する股間部を有する吸収性本体と、前記背側部における前記幅方向の両外側に位置する一対の係止部材と、を備える、テープ型おむつであって、
前記背側部における前記一対の係止部材の間に、前記幅方向に伸縮可能な伸縮部材を更に備え、
前記吸収体は、
高吸水性ポリマーを含み、
股間領域と、
前記股間領域の前記長手方向の後側に隣接する背側領域と、
前記股間領域の前記長手方向の前側に隣接する腹側領域と、を備え、
前記背側領域は、前記股間領域よりも前記高吸水性ポリマーの坪量が低い低坪量域を含み、
前記伸縮部材は、平面視で、前記低坪量域に重なる、
テープ型おむつ。 - 前記伸縮部材は、前記吸収体よりも非肌側に位置する、
請求項2又は3に記載のテープ型おむつ。 - 前記伸縮部材は、前記吸収体の非肌側の表面と直接接合されている、
請求項4に記載のテープ型おむつ。 - 前記伸縮部材は、
前記幅方向の中央部に位置し、前記長手方向の前側の端縁から後側に延び、前記幅方向の伸縮性が低い低伸縮域と、
前記低伸縮域の前記幅方向の両側に隣接し、前記幅方向の伸縮性が高い一対の高伸縮域と、
を有し、
前記低伸縮域は、平面視で、前記低坪量域と重なる、
請求項4又は5に記載のテープ型おむつ。 - 前記長手方向において、前記伸縮部材における前記吸収体と重なる部分の長さは、前記吸収体と重ならない部分の長さよりも短い、
請求項4乃至6のいずれか一項に記載のテープ型おむつ。 - 前記伸縮部材は、前記吸収体よりも肌側に位置し、
前記低坪量域は、前記伸縮部材と非接合である、
請求項2又は3に記載のテープ型おむつ。 - 前記吸収体は、
前記高吸水性ポリマーを含む第1吸収層と、
前記第1吸収層の非肌側に位置し、前記高吸水性ポリマーを含む第2吸収層と、
を更に備え、
前記第2吸収層は、平面視で、前記長手方向の後側の端部に、前記第1吸収層の端縁よりも外側に突出した突出部を含み、
前記突出部は、前記低坪量域を含む、
請求項1乃至8のいずれか一項に記載のテープ型おむつ。 - 前記吸収体は、前記第1吸収層と前記第2吸収層との間に位置し、不織布で形成された中間層を更に備え、
前記低坪量域の肌側の面は前記中間層で覆われている、
請求項9に記載のテープ型おむつ。
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