JP5800520B2 - 体液吸収性物品 - Google Patents
体液吸収性物品 Download PDFInfo
- Publication number
- JP5800520B2 JP5800520B2 JP2011031405A JP2011031405A JP5800520B2 JP 5800520 B2 JP5800520 B2 JP 5800520B2 JP 2011031405 A JP2011031405 A JP 2011031405A JP 2011031405 A JP2011031405 A JP 2011031405A JP 5800520 B2 JP5800520 B2 JP 5800520B2
- Authority
- JP
- Japan
- Prior art keywords
- absorbent
- layer
- body fluid
- water
- absorbing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Absorbent Articles And Supports Therefor (AREA)
Description
(1)測定対象とする上方吸収部11または下方吸収部12をほぐして吸水性繊維21と高吸水性ポリマー粒子22とをそれぞれ約1gずつサンプリングして秤量し、得られた値のそれぞれを吸水性繊維21の乾燥質量と高吸水性ポリマー粒子22の乾燥質量とする。
(2)サンプリングした吸水性繊維21と高吸水性ポリマー粒子22とのそれぞれを別々の250メッシュのナイロン袋に入れて、生理食塩水500ml中に30分間浸漬する。
(3)その後にナイロン袋それぞれを15分間室内に吊して水切りをし、次いで秤量して吸水性繊維21の入ったナイロン袋の質量RPと、高吸水性ポリマー粒子22の入ったナイロン袋の質量RSとを求め、次式によって、吸水性繊維21の吸水率QPと、高吸水性ポリマー粒子の吸水率QSとを算出する。
吸水性繊維の吸水率QP(g/g)={質量RP−(ナイロン袋の質量)−(吸水性繊維21の乾燥質量)}/(吸水性繊維21の乾燥質量)
高吸水性ポリマー粒子22の吸水率QS(g/g)={質量RS−(ナイロン袋の質量)−(高吸水性ポリマー粒子22の乾燥質量)}/(高吸水性ポリマー粒子22の乾燥質量)
(4)次に、上方吸収部11または下方吸収部12から30×30mmの測定用試片を切り取って秤量し、得られた値を試片の乾燥質量W0とする。その試片に含まれる吸水性繊維21の乾燥質量をWPとし、高吸水性ポリマー粒子22の乾燥質量をWSとする。
(5)試片を250メッシュのナイロン袋に入れて、生理食塩水500ml中に30分間浸漬した後に、15分間室内に吊して水切りをしてから秤量し、吸水した試片の吸水質量W1を求め、乾燥質量W0と吸水質量W1とから試片の吸水量TA(g)を求め、さらに次式から吸水性繊維21と高吸水性ポリマー粒子22との乾燥質量WPとWSとを求める。
W0 *=WP+WS
TA *=W1 *−W0 *
TA *=QP *・WP+QS *・WS=QP *・WP+QS *(W0 *−WP)=(QP *−QS *)・WP+QS *・W0 *
WP=(TA *−QS *・W0 *)/(QP *−QS *)
WS=W0 *−{(TA *−QS *・W0 *)/(QP *−QS *)}
上記の手順によれば、高吸水性ポリマー粒子22の含有率(%)は、(WS/W0 *)・100として求めることができる。なお、上記の式における*印は、試片を測定することによって直接的に求めることのできる値であることを示している。このようにして高吸水性ポリマー粒子22の含有率を測定する方法は、吸水性繊維21と高吸水性ポリマー粒子22とが容易に分離することがない程度に一体化している場合の上方吸収部11や下方吸収部12に対して適用することが好ましい。
2 トップシート
3 バックシート
4 吸収体
7 部分(端部)
8 部分(端部)
11 上方吸収部
11a スキン層(上方スキン層)
11c スキン層(上方スキン層)
12 下方吸収部
12a スキン層(下方スキン層)
12c スキン層(下方スキン層)
13 ラッピングシート
13a,13b ラッピングシート(第1、第2ラッピングシート)
21 吸水性繊維
22 高吸水性ポリマー粒子
31 中央部分(第1上方部分)
32 端部分(第2上方部分)
33 端部分(第3上方部分)
41 中央部分(第1下方部分)
42 端部分(第2下方部分)
43 端部分(第3下方部分)
100 圧搾部
100a 第2の圧搾部
100b 第2の圧搾部
A 長さ方向
B 幅方向
C 厚さ方向
Claims (7)
- 長さ方向と幅方向と厚さ方向とを有し、前記厚さ方向において透液性のトップシートと透液性および不透液性いずれかのバックシートとの間に吸収体が介在し、前記吸収体が、吸水性繊維として少なくとも粉砕パルプを含む吸水性材料の集合体をラッピングシートで被覆したものであって、体液の拡散を容易にする拡散手段を有し、前記ラッピングシートが少なくとも前記厚さ方向の上方に位置する部分が透液性のものである体液吸収性物品であって、
前記吸収体は、前記ラッピングシートの内側にあって前記厚さ方向で互いに重なり合う上方吸収部と下方吸収部とを有し、
前記上方吸収部および前記下方吸収部のそれぞれは、高吸水性ポリマー粒子を含む上方吸収層および下方吸収層のそれぞれを有し、
前記吸収体は前記拡散手段として、前記上方吸収部および前記下方吸収部のいずれか一方の吸収部にあり、前記上方吸収層と前記下方吸収層のそれぞれに接触し、かつ高吸水性ポリマー粒子を含むことのないスキン層を含み、
前記スキン層において前記吸水性繊維は、該スキン層の表面に沿って延びており、前記上方吸収層および前記下方吸収層において前記吸水性繊維は、不規則に集積しており、
前記吸収体における前記体液の拡散速度は、前記スキン層における前記拡散速度が、前記上方吸収層および前記下方吸収層における前記拡散速度よりも速いことを特徴とする前記体液吸収性物品。 - 前記吸収体を前記厚さ方向において部分的に圧搾することにより形成され、前記長さ方向に並ぶ複数の圧搾部位をさらに含み、
前記圧搾部位それぞれの面積は前記長さ方向の中央部から前記長さ方向の端部に向かって次第に大きくなるように形成されている請求項1記載の体液吸収性物品。 - 前記スキン層では、前記吸水性繊維が前記スキン層において、前記長さ方向および前記幅方向のうちの少なくとも一方向へ横たわるように延びていることによって、前記拡散速度が速くなっている請求項1または2記載の体液吸収性物品。
- 前記上方吸収部における前記高吸水性ポリマー粒子の含有率が前記下方吸収部における前記高吸水性ポリマー粒子の含有率よりも低い請求項1〜3のいずれかに記載の体液吸収性物品。
- 前記上方吸収部と前記下方吸収部とのそれぞれが35〜75重量%の前記高吸水性ポリマー粒子を含んでいる請求項1〜4のいずれかに記載の体液吸収性物品。
- 前記上方吸収部と前記下方吸収部とは、前記長さ方向および前記幅方向の少なくとも一方の方向における中央部分が前記少なくとも一方の方向において前記中央部分を挟む両側部分よりも厚さが厚く形成されている請求項1〜5のいずれかに記載の体液吸収性物品。
- 前記上方吸収部と前記下方吸収部とのそれぞれにおいて、前記中央部分には前記吸水性繊維を単位面積当たりの質量で300〜400g/m2含む部位が形成され、前記両側部分には前記吸水性繊維を単位面積当たりの質量で100〜250g/m2含む部位が形成されている請求項6記載の体液吸収性物品。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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JP2011031405A JP5800520B2 (ja) | 2010-09-16 | 2011-02-16 | 体液吸収性物品 |
TW100132867A TW201225936A (en) | 2010-09-16 | 2011-09-13 | Bodily fluid absorbent article |
CN201180044329.2A CN103118644B (zh) | 2010-09-16 | 2011-09-16 | 体液吸收性物品 |
PCT/JP2011/005267 WO2012035787A1 (en) | 2010-09-16 | 2011-09-16 | Bodily fluid absorbent article |
US13/819,728 US9089457B2 (en) | 2010-09-16 | 2011-09-16 | Bodily fluid absorbent article |
EP11824800.4A EP2616028A4 (en) | 2010-09-16 | 2011-09-16 | BODY LIQUID ABSORBENT ARTICLE |
Applications Claiming Priority (3)
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JP2010208654 | 2010-09-16 | ||
JP2010208654 | 2010-09-16 | ||
JP2011031405A JP5800520B2 (ja) | 2010-09-16 | 2011-02-16 | 体液吸収性物品 |
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JP2012081246A JP2012081246A (ja) | 2012-04-26 |
JP2012081246A5 JP2012081246A5 (ja) | 2015-04-02 |
JP5800520B2 true JP5800520B2 (ja) | 2015-10-28 |
Family
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JP2011031405A Expired - Fee Related JP5800520B2 (ja) | 2010-09-16 | 2011-02-16 | 体液吸収性物品 |
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US (1) | US9089457B2 (ja) |
EP (1) | EP2616028A4 (ja) |
JP (1) | JP5800520B2 (ja) |
CN (1) | CN103118644B (ja) |
TW (1) | TW201225936A (ja) |
WO (1) | WO2012035787A1 (ja) |
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2011
- 2011-02-16 JP JP2011031405A patent/JP5800520B2/ja not_active Expired - Fee Related
- 2011-09-13 TW TW100132867A patent/TW201225936A/zh unknown
- 2011-09-16 CN CN201180044329.2A patent/CN103118644B/zh not_active Expired - Fee Related
- 2011-09-16 US US13/819,728 patent/US9089457B2/en active Active
- 2011-09-16 WO PCT/JP2011/005267 patent/WO2012035787A1/en active Application Filing
- 2011-09-16 EP EP11824800.4A patent/EP2616028A4/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP2616028A4 (en) | 2014-03-19 |
JP2012081246A (ja) | 2012-04-26 |
CN103118644A (zh) | 2013-05-22 |
US9089457B2 (en) | 2015-07-28 |
EP2616028A1 (en) | 2013-07-24 |
CN103118644B (zh) | 2015-07-01 |
WO2012035787A1 (en) | 2012-03-22 |
US20130165882A1 (en) | 2013-06-27 |
TW201225936A (en) | 2012-07-01 |
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