JP2020108741A - パンツ型おむつ - Google Patents
パンツ型おむつ Download PDFInfo
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- JP2020108741A JP2020108741A JP2019223227A JP2019223227A JP2020108741A JP 2020108741 A JP2020108741 A JP 2020108741A JP 2019223227 A JP2019223227 A JP 2019223227A JP 2019223227 A JP2019223227 A JP 2019223227A JP 2020108741 A JP2020108741 A JP 2020108741A
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- longitudinal direction
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- absorbent
- waist belt
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Abstract
Description
背側ウエストベルトにおける弾性部材が配置されている領域は、背側ウエストベルトが弾性部材により肌面にフィットするように肌側に押し付けられているので、吸収体の膨潤による段差が形成され易い。本パンツ型おむつでは、弾性部材が配置されている領域が厚さ方向にタグ部と重なるため、吸収体の膨潤による段差の影響を受けやすいが、上記された構成を有しているので、タグ部の位置と段差の位置とは大きく離れている。したがって、タグ部が後処理テープから離れて浮いてしまうことを抑制できる。
本パンツ型おむつでは、低坪量域は、厚さ方向にテープ固定領域と重なっている。ここで、背側領域は、液体をそれほど多く吸収する必要が無いので低坪量域を用いることができ、その低坪量域は、液体の吸収の前も吸収した後も相対的に厚さが薄い。したがって、装着後に高吸水性ポリマーが液体を吸収して膨潤が進み、吸収体の膨潤による段差が背側ウエストベルトのテープ固定領域又はその近傍に形成されても、低坪量域の膨潤による段差なので、その段差を小さくすることができる。したがって、タグ部が後処理テープから離れて浮いてしまうことを抑制できる。
本パンツ型おむつでは、吸収体が低坪量域に圧搾部を備えている。そのため、装着後に高吸水性ポリマーが液体を吸収して膨潤が進んでも、吸収体の低坪量域の高吸水性ポリマーの膨潤が圧搾部により抑制されるので、背側ウエストベルトの後側の端部に形成される、吸収体の膨潤による段差をより小さくすることができる。したがって、タグ部が後処理テープから離れて浮いてしまうことをより抑制できる。
本パンツ型おむつでは、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、テープ固定領域が、吸収体の一層分の部分である突出部と重なっている。したがって、装着後に高吸水性ポリマーが液体を吸収して膨潤が進み、吸収体の膨潤による段差が背側ウエストベルトのテープ固定領域又はその近傍に形成されても、厚さの薄い突出部の膨潤による段差なので、その段差を小さくすることができる。したがって、タグ部が後処理テープから離れて浮いてしまうことを抑制できる。
本パンツ型おむつでは、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、低坪量域の厚さをより確実に薄く維持することができる。それにより、吸収体の膨潤による段差が形成されても、厚さの薄い突出部の膨潤による段差なので、その段差を確実に小さくすることができる。したがって、タグ部が後処理テープから離れて浮いてしまうことをより抑制できる。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。
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、幅方向Wの中央部の非肌面側の表面に後処理テープ50を配置されたカバーシート5(弾性部材6、7、8を含む)上に、吸収性本体10を貼り付け、腹側部2の幅方向Wの両端部2a、2aと背側部3の幅方向Wの両端部3a、3aとを接合する。それにより、パンツ型おむつ1が製造される。
2 腹側部(腹側ウエストベルト)
3 背側部(背側ウエストベルト)
7b 弾性部材
10 吸収性本体
14 吸収体
50 後処理テープ
51 タグ部
TA テープ固定領域
Claims (7)
- 互いに直交する長手方向、幅方向及び厚さ方向を有し、腹側ウエストベルトと、背側ウエストベルトと、前記腹側ウエストベルトと前記背側ウエストベルトとの間に位置する、吸収体を含む吸収性本体と、前記背側ウエストベルトの前記幅方向の中央部の非肌面側の表面に配置され、前記長手方向に延在する後処理テープと、を備えるパンツ型おむつであって、
前記後処理テープは、前記長手方向の後側の端部にタグ部を有し、
前記吸収体は、高吸水性ポリマーを含み、
前記背側ウエストベルトは、少なくとも前記吸収体よりも前記長手方向の後側に、前記幅方向に沿って延設された弾性部材を含み、
前記背側ウエストベルトにおける前記後処理テープが固定されたテープ固定領域は、前記テープ固定領域における前記長手方向の前側の半分以下の領域で、前記吸収体と前記厚さ方向に重なる、
パンツ型おむつ。 - 互いに直交する長手方向、幅方向及び厚さ方向を有し、腹側ウエストベルトと、背側ウエストベルトと、前記腹側ウエストベルトと前記背側ウエストベルトとの間に位置する、吸収体を含む吸収性本体と、前記背側ウエストベルトの前記幅方向の中央部の非肌面側の表面に配置され、前記長手方向に延在する後処理テープと、を備えるパンツ型おむつであって、
前記後処理テープは、前記長手方向の後側の端部にタグ部を有し、
前記吸収体は、高吸水性ポリマーを含み、
前記背側ウエストベルトは、少なくとも前記吸収体よりも前記長手方向の後側に、前記幅方向に沿って延設された弾性部材を含み、
前記背側ウエストベルトにおける前記後処理テープが固定されたテープ固定領域は、全域で、前記吸収体と前記厚さ方向に重なる、
パンツ型おむつ。 - 前記弾性部材は、前記厚さ方向において前記タグ部と重なる、
請求項1又は2に記載のパンツ型おむつ。 - 前記吸収体は、
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、
前記テープ固定領域は、前記厚さ方向において前記低坪量域と重なる、
請求項1乃至3のいずれか一項に記載のパンツ型おむつ。 - 前記吸収体は、少なくとも前記低坪量域に、前記吸収体を前記厚さ方向に圧縮した圧搾部を備える、
請求項4に記載のパンツ型おむつ。 - 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、前記テープ固定領域と前記厚さ方向に重なる、
請求項1乃至5のいずれか一項に記載のパンツ型おむつ。 - 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6に記載のパンツ型おむつ。
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