JP5186386B2 - 複合シート及び複合シートを用いた吸収性物品 - Google Patents
複合シート及び複合シートを用いた吸収性物品 Download PDFInfo
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- JP5186386B2 JP5186386B2 JP2008546984A JP2008546984A JP5186386B2 JP 5186386 B2 JP5186386 B2 JP 5186386B2 JP 2008546984 A JP2008546984 A JP 2008546984A JP 2008546984 A JP2008546984 A JP 2008546984A JP 5186386 B2 JP5186386 B2 JP 5186386B2
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Description
前記第1伸縮性不織布と前記非伸縮性シートとの貼り合せ部分、及び、前記第2伸縮性不織布と前記非伸縮性シートとの貼り合せ部分における、前記長手方向及び前記幅方向についての破断最大強度が20N/50mm以上である吸収性物品である。
図1から図9より、複合シート1について説明する。図1及び図2に示すように、本発明における複合シート1は、伸縮性不織布2と非伸縮性シートである非伸縮性不織布3とが接着剤4により接着されたシートである。具体的には、複合シート1は、該伸縮性不織布2が伸長された状態で、非伸縮性不織布3と貼り合わされたシートである。
図9を用いて複合シート1の製造方法について説明する。本発明に係る複合シート1の製造方法は、以下のようにして実施される。まず、原反ロール31に巻かれたギア延伸加工前の伸縮性不織布原反5を巻き出す。
本発明にかかる複合シート1は、例えば、吸収性物品であるパンツ型使い捨ておむつ50に使用することができる。以下、上述した複合シート1を使用したパンツ型使い捨ておむつ50について詳細に説明するが、パンツ型使い捨ておむつ50のうち着用者の身体に向けられる側を肌当接面側とし、肌当接面側とは反対側を非肌当接面側とする。
図12に示すように、以下に吸収性物品であるパンツ型使い捨ておむつ50の製造方法について説明する。図12は、使い捨ておむつ50の製造工程を説明する図であるが、該使い捨ておむつ50における非肌当接面側を表面側としており、肌当接面側を裏面側として示している。
以下、本発明の実施例を説明するが、これらの実施例は本発明を好適に説明するための例示にすぎず、何ら本発明を限定するものではない。尚、以下においてMD方向とは、上述の実施形態(図1、図5など)における横方向(Direction M)に該当し、いわゆるマシン流れ方向を指し、CD方向とは、上述の実施形態(図1、図5)などの縦方向(Direction C)に該当し、いわゆるマシン流れ方向に直交する方向を指す。
Claims (10)
- 非伸縮性シートと、
少なくとも部分的に延伸された熱可塑性繊維と、前記熱可塑性繊維とは別のエラストマー繊維と、を含み、両面に第1方向に沿って形成される複数の帯状疎領域と複数の帯状密領域とが前記第1方向に直交する第2方向に交互に連続して形成されると共に、一の面における前記帯状密領域と他の面における前記帯状密領域とが前記第2方向において交互に設けられる伸縮性不織布と、
前記非伸縮性シートと前記伸縮性不織布とを貼り合わせる接着部分と、を備え、
前記非伸縮性シートは、伸長状態での目付が10〜50g/m 2 の範囲の非伸縮性不織布であり、
前記伸縮性不織布は、少なくとも伸び止まり伸度で20%以上の伸縮率のあるものが用いられ、
前記伸縮性不織布は伸長した状態で、スパイラルパターンの前記接着部分を有して前記非伸縮性シートに貼り合わせてなり、前記伸縮性不織布の伸長状態が解除されると、前記非伸縮性シートは、前記接着部分にしたがって接着パターンが形成されると共に、接着されない部分がたるむようにして複数の皺が形成されており、
前記第1方向及び前記第2方向についての破断最大強度が20N/50mm以上である複合シート。 - 前記熱可塑性繊維は、部分的に延伸されていない熱可塑性繊維と、
前記部分的に延伸されていない熱可塑性繊維より平均繊維径が細く、部分的に延伸された熱可塑性繊維と、からなり、
前記部分的に延伸された熱可塑性繊維が含まれる領域は、厚さ方向に繊維の間隔が広く膨らんだ状態の前記帯状疎領域であり、
前記部分的に延伸されていない熱可塑性繊維が含まれる領域は、厚さ方向に繊維の間隔が狭い状態の前記帯状密領域である請求項1に記載の複合シート。 - 前記伸縮性不織布の伸び止まり伸度は、前記伸縮性不織布を引っ張るストレスに対して伸度の変化をグラフにしたときの、伸度の変化の割合が低くなる曲線の領域において引かれる2つの接線とその交点で形成される角を2等分する線が前記曲線と交わるポイントに相当する伸度である請求項1又は2に記載の複合シート。
- 前記伸縮性不織布の非伸長状態における目付は、20〜100g/m2である請求項1から3のいずれかに記載の複合シート。
- 前記伸縮性不織布における前記第2方向へ75%伸長時の強度が5N/50mm以下である請求項1から4のいずれかに記載の複合シート。
- 前記非伸縮性シートの伸長状態の目付は、10〜50g/m2である請求項1から5のいずれかに記載の複合シート。
- 前記複合シートにおける非伸長状態の目付は、200g/m2以下であり、
前記複合シートにおける伸長状態の目付は、130g/m2以下である請求項1から6のいずれかに記載の複合シート。 - 前記複合シートにおける60%伸長時の引張強度が7N/50mm以下である請求項1から7のいずれかに記載の複合シート。
- 少なくとも吸収体と、
請求項1から8のいずれかに記載の複合シートと、を備える吸収性物品。 - 長手方向と前記長手方向に垂直な幅方向とを有し、
前記長手方向に沿うように配置される略縦長状の吸収体と、
前記幅方向の両縁に形成される内側に突出するU字状の切り込み部を有する非伸縮性シートと、
装着時における肌当接面側と、非肌当接面側の少なくとも一方であって身体の前面側に位置する前身頃及び身体の後面側に位置する後身頃に配置される第1伸縮性不織布と、
前記非伸縮性シートにおける前記切り込み部の最も突出する部位を含む領域の前記肌当接面側と、非肌当接面側の少なくとも一方に配置される第2伸縮性不織布と、を備える吸収性物品であって、
前記非伸縮性シートは、伸長状態での目付が10〜50g/m 2 の範囲の非伸縮性不織布であり、
前記第1伸縮性不織布及び第2伸縮性不織布それぞれは、少なくとも部分的に延伸された熱可塑性繊維と、前記熱可塑性繊維とは別のエラストマー繊維と、を含み、両面に第1方向に沿って形成される複数の帯状疎領域と複数の帯状密領域とが前記第1方向に直交する第2方向に交互に連続して形成されると共に、一の面における前記帯状密領域と他の面における前記帯状密領域とが前記第2方向において交互に設けられて、少なくとも伸び止まり伸度で20%以上の伸縮率を有しており、
前記第1伸縮性不織布は、伸長した状態で、スパイラルパターンの接着部分を有して前記非伸縮性シートに貼り合わせてなり、前記第1伸縮性不織布の伸長状態が解除されると、前記非伸縮性シートは、前記接着部分にしたがって接着パターンが形成されると共に、接着されない部分がたるむようにして複数の皺が形成されて前記幅方向に伸縮可能となっており、
前記第2伸縮性不織布は、伸長した状態で、スパイラルパターンの接着部分を有して前記非伸縮性シートに貼り合わせてなり、前記第2伸縮性不織布の伸長状態が解除されると、前記非伸縮性シートは、前記接着部分にしたがって接着パターンが形成されると共に、接着されない部分がたるむようにして複数の皺が形成されて前記長手方向に伸縮可能となっており、
前記第1伸縮性不織布と前記非伸縮性シートとの貼り合せ部分、及び、前記第2伸縮性不織布と前記非伸縮性シートとの貼り合せ部分における、前記長手方向及び前記幅方向についての破断最大強度が20N/50mm以上である吸収性物品。
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JP5506519B2 (ja) | 2010-04-16 | 2014-05-28 | ユニ・チャーム株式会社 | 凹凸を有する不織布を簡易に製造する方法、及び不織布を簡易に加工する方法 |
JP5704877B2 (ja) * | 2010-09-30 | 2015-04-22 | ユニ・チャーム株式会社 | 不織布、及び上記不織布を含む吸収性物品、並びに上記不織布の形成方法 |
JP2013123449A (ja) * | 2011-12-13 | 2013-06-24 | Oji Nepia Co Ltd | 使い捨ておむつ |
JP6431875B2 (ja) * | 2016-06-30 | 2018-11-28 | ユニ・チャーム株式会社 | 使い捨ておむつ |
JP7025172B2 (ja) * | 2017-10-12 | 2022-02-24 | ユニ・チャーム株式会社 | 吸収性物品用伸縮性シート及びそれを使用した吸収性物品 |
JP7336851B2 (ja) * | 2019-01-25 | 2023-09-01 | 花王株式会社 | 伸縮性複合シート及びその製造方法 |
CN110923957B (zh) * | 2019-11-29 | 2021-08-06 | 青岛农业大学 | 用于电纺双褶皱纳米纤维膜的收集机构及电纺装置 |
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JPWO2008066010A1 (ja) | 2010-03-04 |
MA31013B1 (fr) | 2009-12-01 |
US20100049153A1 (en) | 2010-02-25 |
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