JP5290992B2 - 着用吸収性物品 - Google Patents
着用吸収性物品 Download PDFInfo
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- JP5290992B2 JP5290992B2 JP2009543689A JP2009543689A JP5290992B2 JP 5290992 B2 JP5290992 B2 JP 5290992B2 JP 2009543689 A JP2009543689 A JP 2009543689A JP 2009543689 A JP2009543689 A JP 2009543689A JP 5290992 B2 JP5290992 B2 JP 5290992B2
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- 239000002250 absorbent Substances 0.000 title claims abstract description 51
- 230000002745 absorbent Effects 0.000 title claims abstract description 50
- 239000000835 fiber Substances 0.000 claims abstract description 96
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 54
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 37
- 230000004888 barrier function Effects 0.000 claims description 38
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 238000010521 absorption reaction Methods 0.000 claims description 15
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 206010012239 Delusion Diseases 0.000 description 1
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- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
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- 239000002994 raw material Substances 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
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- 230000001953 sensory effect Effects 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
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- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
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Description
しかし、親水性処理を施した繊維不織布シートをおむつの外層シートに用いた場合、外層シートの内面に液不透過性シートを配置しない限り、吸収構造体から滲み出た体液がそのまま外層シートからおむつの外へ滲み出し、装着したズボン等、おむつの周囲にある物を汚してしまうことがある。
なお、カバーシートの親水化された繊維が、外気中の水分又は着用吸収性物品から漏れた水分を吸収して湿気を与えられる。
カバーシートを形成する繊維不織布が、親水化処理された疎水性繊維の層と、親水化処理されていない疎水性繊維の層との積層体から成り、親水化処理された疎水性繊維の層が着用吸収性物品の外装となる態様では、親水化処理された層が着用者にしっとり感や肌触りの柔らかさを覚えさせる。また、親水化処理されていない疎水性繊維の層が着用吸収性物品の外側に体液が滲み出すことを防止する。これらにより、着用吸収性物品の着用感が改善される。
親水性付与剤が練り込まれた疎水性繊維を親水化処理された疎水性繊維に用いれば、親水性付与剤が摩擦・蒸散等で離脱してその効果が低減することを回避できる。
2 前ウエスト域
3 クロッチ域
4 後ウエスト域
5 トップシート
6 バリヤシート
7 カバーシート
8 吸収構造体
17 前ウエストバンド域
17a 前ウエスト端部
18 後ウエストバンド域
18a 後ウエスト端部
22 吸湿性を有する繊維
23 疎水性繊維
24 第1の層
25 第2の層
図1の斜視図に示すように、おむつ1は、着用者のウエスト周りに位置する前ウエスト域2、後ウエスト域4と、着用者の股下に位置するクロッチ域3とを有する。前・後ウエスト域2,4と、クロッチ域3とは、その全面がおむつ1のバックシート、すなわち、物品の最外層を形成するカバーシート7で被覆されている。また、おむつ1の内側には、吸収構造体8、バリヤカフ10が設けられている。
評価に当って、従来のおむつ用のスパンボンド法で製造したポリプロピレン(PP)製不織布を比較例1とした。
サンプル1〜3は、比較例1と同様スパンボンド法で製造したPP製不織布であり、親水性付与剤が練り込まれた層と、練り込まれていない層とを有し、各層の厚みはほぼ同じである。親水性付与剤を練り込む層を構成するPP繊維に練り込む親水性付与剤の量を変更することにより、不織布の吸湿率を調整したものである。サンプル1〜3は、サンプル番号の順に親水性付与剤の添加率(質量%)が大きくなる。
サンプル1〜3と、比較例1,2の層構成繊維は、それぞれが、17g/m2の質量、0.085g/cm3の密度、18.2μmの繊度を有するものであった。
なお、PP等の疎水性繊維へ練り込む親水性付与剤の添加量は、通常0.1質量%以上で3.0質量%未満の範囲である。3.0質量%以上では吸収性物品に用いたとき、防漏性において問題を生じるおそれがある。
また、疎水性/親水性の評価は、下記の手順で行った。
(1)ろ紙を5枚重ねて水平に置き、サンプルをのせた。
(2)ピペットで人工尿1滴(約0.05g)を20箇所に滴下した。
(3)20箇所滴下終了から、30秒放置した後、サンプルを透過しろ紙に吸収されている箇所を数えた(ろ紙には吸収されていないが、サンプルに浸透しているものも含まれる)。
(4)サンプルを透過しろ紙に吸収されている箇所の数が0〜10個であるものを疎水性シート、11〜20個であるものを親水性シートとした。
また、表1において、官能試験はN=20名で、サンプルの親水性付与剤が練り込まれた層について行った。
親水性付与剤を含有する層のみで構成される比較例2は、疎水性/親水性の評価においてサンプルを透過しろ紙に吸収された人工尿が認められ、防漏性が劣ることが分かった。
また、カバーシート7は、疎水性繊維が含まれていることにより疎水性となるので、外側が液でにじむことがなく、さらに、体液の吸収性物品の外側への漏出を防止する。また、乾燥肌の多い高齢者にとって扱いやすくなる。
さらに、吸湿性が高まることにより、冬場の静電気が発生しやすい時期に、静電気発生を抑制し、製造時にハンドリングしやすくなる。また、使用中においても静電気発生トラブルを抑制することができる。
Claims (4)
- 吸収構造体と、着用吸収性物品の着用時に前記物品の最外層に位置するカバーシートとを含み、
前記カバーシートが、吸湿性を有する繊維と、疎水性繊維とを含む繊維不織布で形成される着用吸収性物品であって、
前記カバーシートを形成する前記繊維不織布は、恒温恒湿室(20℃,60%RH)内にサンプルを24時間放置した後、前記サンプルを恒温恒湿槽(40℃,60%RH)中で2時間吸湿させた後の質量b(g)と、吸湿させた前記サンプルを105℃±3℃のオーブン中で乾燥させた後の質量c(g)とから、式1で求められる吸湿率が、0.10〜0.27%の範囲であり、
前記カバーシートが、前ウエスト端部を形成する前ウエストバンド域を有する前ウエスト域と、後ウエスト端部を形成する後ウエストバンド域を有する後ウエスト域と、前記前後ウエスト域の間に位置して前記吸収構造体が配置されるクロッチ域とを含み、前記前後ウエスト域及びクロッチ域のほぼ全面を被覆する液不透過性のバリヤシートが前記吸収構造体と前記カバーシートの間に配置されるとともに、
前記前ウエスト端部及び後ウエスト端部に沿ってウエスト弾性部材が伸長状態で取り付けられ、
前記バリヤシートの前記吸収構造体が設けられた側の面の前記ウエスト弾性部材が存在する領域内において、前記カバーシートが前記バリヤシートに重ね合わせられていることを特徴とする着用吸収性物品。 - 前記カバーシートの前記親水化処理された疎水性繊維と、前記親水化処理されていない疎水性繊維とが熱融着されている請求項1に記載の着用吸収性物品。
- 前記親水化処理された疎水性繊維が、親水性付与剤が練り込まれた疎水性繊維である請求項1又は請求項2に記載の着用吸収性物品。
- 前記カバーシートが、前記前ウエスト端部及び前記後ウエスト端部に沿って、前記バリヤシートの前記吸収構造体が設けられた側の前記面に向けて折り返されて、前記バリヤシートに重ね合わせられている請求項1から請求項3のいずれかに記載の着用吸収性物品。
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US (1) | US20110046590A1 (ja) |
EP (1) | EP2221033A4 (ja) |
JP (1) | JP5290992B2 (ja) |
KR (1) | KR20100100864A (ja) |
CN (1) | CN101917949B (ja) |
AU (1) | AU2008330940B2 (ja) |
CA (1) | CA2707003C (ja) |
CO (1) | CO6290617A2 (ja) |
MX (1) | MX2010005812A (ja) |
TW (1) | TWI471125B (ja) |
WO (1) | WO2009069343A1 (ja) |
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JP5591826B2 (ja) * | 2009-01-15 | 2014-09-17 | ザ プロクター アンド ギャンブル カンパニー | 固定サブシステムを有する再利用可能な着用可能吸収性物品 |
JP5486347B2 (ja) * | 2010-02-27 | 2014-05-07 | ユニ・チャーム株式会社 | 使い捨て着用物品 |
JP2011182906A (ja) * | 2010-03-08 | 2011-09-22 | Livedo Corporation | 吸収性物品 |
AU2011243572B2 (en) | 2010-04-19 | 2015-06-25 | Unicharm Corporation | Absorbent article |
JP5855901B2 (ja) * | 2010-11-02 | 2016-02-09 | 花王株式会社 | 使い捨ておむつ |
JP5993151B2 (ja) * | 2012-01-17 | 2016-09-14 | ユニ・チャーム株式会社 | 吸収性物品 |
JP2014176527A (ja) * | 2013-03-15 | 2014-09-25 | Hakujuji Co Ltd | 使い捨て吸収性物品 |
US10501875B2 (en) * | 2014-08-27 | 2019-12-10 | Toray Industries, Inc. | Melt-blown nonwoven fabric and method of manufacturing same |
RU2747616C1 (ru) | 2017-12-21 | 2021-05-11 | Эссити Хайджин Энд Хелт Актиеболаг | Впитывающее изделие и способ изготовления впитывающего изделия |
MY196715A (en) | 2017-12-21 | 2023-05-02 | Essity Hygiene & Health Ab | Absorbent article and method for manufacturing an absorbent article |
WO2019125231A1 (en) | 2017-12-21 | 2019-06-27 | Essity Hygiene And Health Aktiebolag | Absorbent article with reduced sagging and method for manufacturing the absorbent article |
BR112020010011A2 (pt) | 2017-12-21 | 2020-11-03 | Essity Hygiene And Health Aktiebolag | artigo absorvente e núcleo absorvente |
JP7059850B2 (ja) * | 2018-07-26 | 2022-04-26 | 東レ株式会社 | 積層不織布 |
WO2022071517A1 (ja) * | 2020-09-30 | 2022-04-07 | ユニ・チャーム株式会社 | パンツ型吸収性物品 |
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- 2008-08-18 US US12/745,408 patent/US20110046590A1/en not_active Abandoned
- 2008-08-18 JP JP2009543689A patent/JP5290992B2/ja active Active
- 2008-08-18 CA CA2707003A patent/CA2707003C/en not_active Expired - Fee Related
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- 2008-08-18 AU AU2008330940A patent/AU2008330940B2/en not_active Ceased
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EP2221033A1 (en) | 2010-08-25 |
KR20100100864A (ko) | 2010-09-15 |
TW201000082A (en) | 2010-01-01 |
JPWO2009069343A1 (ja) | 2011-04-07 |
AU2008330940B2 (en) | 2014-02-27 |
CA2707003C (en) | 2016-04-26 |
US20110046590A1 (en) | 2011-02-24 |
CN101917949B (zh) | 2014-05-14 |
TWI471125B (zh) | 2015-02-01 |
CN101917949A (zh) | 2010-12-15 |
EP2221033A4 (en) | 2014-03-19 |
MX2010005812A (es) | 2010-08-04 |
CA2707003A1 (en) | 2009-06-04 |
WO2009069343A1 (ja) | 2009-06-04 |
AU2008330940A1 (en) | 2009-06-04 |
CO6290617A2 (es) | 2011-06-20 |
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