JP4559492B2 - 液体移送層を含む吸収用品 - Google Patents
液体移送層を含む吸収用品 Download PDFInfo
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- JP4559492B2 JP4559492B2 JP2007557000A JP2007557000A JP4559492B2 JP 4559492 B2 JP4559492 B2 JP 4559492B2 JP 2007557000 A JP2007557000 A JP 2007557000A JP 2007557000 A JP2007557000 A JP 2007557000A JP 4559492 B2 JP4559492 B2 JP 4559492B2
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Landscapes
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Description
全ての積層体は、感覚試験において軟らかさおよび表面乾燥度を検査した。積層体は、トレイ上に置かれ、トレイの中央で製品の中心に位置決めされた。試料は、(黒い箱の中に置かれた)対で比較され、評価者には圧力をかけないで両手で表面を円滑に探ることによって試料を比較し、どの試料が最も粗いかを見分けることが求められた。8つの異なる積層体の間の軟らかさに関して、明らかな違いは見られなかった。表面乾燥度検査では、試料はトレイ上に置かれ、トレイの中央で製品の中心に位置決めされた。試料は対で比較された。80mlの合成尿が、ポンプおよびカップで加えられた。(黒い箱の中に置かれた)2つの試料を1分間放置した後、評価者は圧力を加えることなく両手で表面を円滑に探ることによって2つの試料を比較した。評価者は、どの試料が最も湿っているかを見分けることが求められた。試料C、DおよびFは、試料Aより乾いていることが実験により分かった。
使用量カップが、試験される製品の中心に置かれ、シールが製品と使用量カップの間に提供される。627gの重量が使用量カップに加えられる。液体の存在を感知する電子センサが、試料の表面に設けられる。50mlの合成尿が、20ml/秒の流速で使用量カップに供給される。試験液を製品に吸収させるのにかかる時間は、収集1として登録される。カップが取り除かれ、製品は10分間放置される。それぞれ収集2および3の値を得るために、この手順が同じ製品に対して、各回50mlの試験液で繰り返される。
Kawabata KES-FB試験は織物材料に使用される日本式品質判断システムであり、「The Standardization and Analysis of Hand Evaluation(2nd Edition)、Sueo Kawabata、1980年7月、The Hand Evaluation and Standardization Committee、The Textile Machinery Society of Japan」に開示されている。この試験は、曲げ剛性B(gf・cm2/cm)を測定するKES-FB2、圧縮EMC(%)および回復RC(%)を測定するKES-FB3、摩擦係数MIUを測定するKES-FB4、および剪断剛性G(gf/cm・度)および伸びEMT(%)を測定するKES-FB1の4つのKawabata試験機械を使用した。
Kawabataによる軟らかさ(S)は、以下の式により得られる。
S=(EMT/B)1/2
Kawabataによるドレープ性(D)は、以下の式により得られる。
D=116+25・log(B・G/W)
但し、Wは試料の坪量である。
EMC圧縮(%):少なくとも50、好ましくは少なくとも55、より好ましくは少なくとも58%;
RC回復(%):少なくとも40、好ましくは少なくとも45%;
S軟らかさ:少なくとも6、好ましくは少なくとも7;
MIU摩擦係数:0.1から0.6までの間(平均値)
本発明の表面概念はさらに、その3次元構造を特徴とする。ライナ概念の表面形態が、材料のパターンおよび処理パラメータを組み合わせて反映させることができることが分かる。したがって、形態の表面側面評価および定量化は、パラメータが重要である基本的な情報を製品または材料機能、および外観に与える。
器具:MacroCad(GFMesstechnik GmbH, Teltow/ベルリン、ドイツ)
測定方法:投影フリンジ法
測定面積:146mm*109mm
横方向サンプリング:約110マイクロメートル
縦方向解像度および再現性:それぞれ、10ミクロメートルおよび1ミクロメートル
・Smr(c=150):1%から25%、好ましくは1から12%
・Smr(c=200):6から40%、好ましくは6から25%
・Smr(c=500):40から85%、好ましくは50から85%
・Smr(c=750):60から100%、好ましくは80から100%
・Sz:700から1500μm、好ましくは800から1400μm
・Sq:100から300μm、好ましくは130から280μm
・SΔq:0.5から0.8
・Sdr:10から30%、好ましくは15から25%
・Sbi:0.6から0.9
・Sci:0.8から1.3
・Svi:0.1から0.15
溶着パターンで得られる現象を理論的に調査するために、気孔容積分布が測定された。調査は、組み合わせたライナおよび移送層の3つの積層体を含んでおり、1つの試料(基準)では、ライナおよび移送層は溶着によって組み合わされないが、互いの上部に配置されているだけであり、他の2つの試料(AおよびC)では、ライナおよび移送層は異なる溶着パターンで互いに溶着された(表1および8を参照されたい)。3つの試料は全て、同じライナおよび移送層で構成した。試料の唯一の相違点は溶着パターンであった。
・試料厚さ:4mm
・液体密度:0.77kg/dm3
・表面張力:27.6mN/m
・COS接触角度:1
・チャンバ高さ:6.4mm
・平衡速度:2mg/分
・厚さ測定:あり
・間隔:30秒
縁部ウェブ材料9のウェブは、スリットナイフ12によって、中間で切断され、ウェブ分離ステーション13内で分離されて、穿孔ライナ6を格納するようになっている選択幅の間隙を作り出す。スリットウェブ材料は、穿孔ライナ6の長手方向の対向する側に縁部液体透過性層9を形成し、ライナ6の縁部と重なるようにライナと組み合わせられる。移送層材料5のウェブは、縁部液体透過性層9として、その反対側で穿孔ライナ6と組み合わせられる。超音波溶着ステーション14では、異なる材料層5,6および9は上に開示した方法で組み合わせられる。2つ以上の超音波溶着ステーションを使用することができ、例えば、1つは結合パターン10を作り出すためであり、1つは結合部位11を作り出すためのものである。その後のステップ(図示せず)では、吸収コア2および背面シート4は、吸収用品を形成するために、穿孔ライナ6、移送層5、および縁部液体透過性層9によって形成された処理ウェブと組み合わされる。さらに、弾性部材などの構成要素を当技術分野で知られている適切な方法で吸収用品に取り付けることができる。
2 吸収コア
3 液体透過性上部シート
4 液体バリア背面シート材料
5 液体移送層
6 ライナ
7 穿孔
7a 縁部
8 窪み
9 縁部液体透過性層
10 超音波溶着パターン
11 結合部位
12 スリットナイフ
13 ウェブ分離ステーション
14 超音波溶着ステーション
Claims (12)
- 着用者の身体に隣接して位置決めされるようになっている液体透過性ボディサイドライナ(6)と、液体不透過性背面シート(4)と、前記ボディサイドライナと前記背面シートの間に位置決めされた吸収コア(2)とを備え、さらに前記ボディサイドライナ(6)と前記吸収コア(2)の間に多孔質液体移送層(5)を備えた吸収用品において、前記ライナおよび前記移送層は両方とも熱可塑性材料を含み、前記熱可塑性材料がその中で少なくとも部分的に軟化または溶融され、それによって前記ライナおよび前記移送層を互いに結合する複数の結合部位(11)内で互いに結合され、前記ライナ(6)は複数の穿孔(7)を備え、交互の凹凸領域の3次元構成を有し、前記穿孔(7)は前記ライナの身体に面する側から見て前記ライナの窪み(8)の底部に存在し、前記吸収用品は長手方向(y)および横方向(x)を有する吸収用品であって、
いわゆる湿潤領域に相当する吸収用品の少なくとも中央部では、前記結合部位(11)は、前記結合部位(11)に囲まれた前記ライナ(6)の前記部分の合計面積の0.2%から5%までの面積に及び、各結合部位は13mm2以下の面積を有することを特徴とする吸収用品。 - 各結合部位は、8mm2以下の面積を有することを特徴とする請求項1に記載の吸収用品。
- 前記結合部位(11)は、面積の少なくとも0.5%に及ぶことを特徴とする請求項1または請求項2に記載の吸収用品。
- 単位面積当たりの結合部位(11)の数は、1dm2当り30から300までの間、好ましくは1dm2当り45から190までの間であるべきであることを特徴とする請求項1から請求項3のいずれか一項に記載の吸収用品。
- 前記穿孔処理による前記穿孔(7)は、前記移送層(5)に面する側に突起する縁部(7a)を有し、前記縁部は前記ライナ(6)と前記移送層の間の摩擦を大きくするように前記移送層と係合することを特徴とする請求項1から請求項4のいずれか一項に記載の吸収用品。
- 前記ライナ(6)は、不織材料、プラスチックフィルム、または少なくとも2つの不織材料間、不織材料とプラスチックフィルムの間または不織材料と詰物の間の積層体であることを特徴とする請求項1から請求項5のいずれか一項に記載の吸収用品。
- 前記結合部位(11)は、前記移送層(5)および前記ライナ(6)の厚さ方向に延び、それによって前記結合部位の領域内で前記移送層および前記ライナを圧縮することを特徴とする請求項1から請求項6のいずれか一項に記載の吸収用品。
- 前記結合部位(11)は、超音波接合によって提供されることを特徴とする請求項7に記載の吸収用品。
- 前記移送層(5)は、20から100g/m2までの間、好ましくは30から80g/m2までの間の坪量を有する多孔質繊維材料または発泡材料であることを特徴とする請求項1から請求項8のいずれか一項に記載の吸収用品。
- 前記穿孔ライナ(6)は、吸収用品の長手(y)中心領域に配置され、縁部液体透過性層(9)は、吸収用品の長手縁部に沿って配置され、前記穿孔ライナに結合されていることを特徴とする請求項1から請求項9のいずれか一項に記載の吸収用品。
- 前記穿孔ライナ(6)は、その股領域内の吸収用品の幅の少なくとも50%である、吸収用品の横方向の幅を有することを特徴とする請求項10に記載の吸収用品。
- 前記穿孔ライナ(6)は、少なくとも20mm、好ましくは少なくとも25mmの幅を有することを特徴とする請求項11に記載の吸収用品。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US65820605P | 2005-03-04 | 2005-03-04 | |
PCT/SE2006/000265 WO2006093457A1 (en) | 2005-03-04 | 2006-03-01 | An absorbent article comprising a liquid transfer layer |
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JP2008531111A JP2008531111A (ja) | 2008-08-14 |
JP4559492B2 true JP4559492B2 (ja) | 2010-10-06 |
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JP2007557000A Expired - Fee Related JP4559492B2 (ja) | 2005-03-04 | 2006-03-01 | 液体移送層を含む吸収用品 |
Country Status (15)
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US (1) | US7674949B2 (ja) |
EP (1) | EP1868551B1 (ja) |
JP (1) | JP4559492B2 (ja) |
KR (1) | KR20070115974A (ja) |
CN (1) | CN101132751B (ja) |
AR (1) | AR054742A1 (ja) |
BR (1) | BRPI0609391B8 (ja) |
CA (1) | CA2599313A1 (ja) |
ES (1) | ES2544948T3 (ja) |
MX (1) | MX2007009880A (ja) |
PL (1) | PL1868551T3 (ja) |
RU (1) | RU2394544C2 (ja) |
TN (1) | TNSN07338A1 (ja) |
TW (1) | TW200642668A (ja) |
WO (1) | WO2006093457A1 (ja) |
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-
2006
- 2006-03-01 ES ES06716952.4T patent/ES2544948T3/es active Active
- 2006-03-01 CA CA002599313A patent/CA2599313A1/en not_active Abandoned
- 2006-03-01 EP EP06716952.4A patent/EP1868551B1/en active Active
- 2006-03-01 BR BRPI0609391A patent/BRPI0609391B8/pt not_active IP Right Cessation
- 2006-03-01 PL PL06716952T patent/PL1868551T3/pl unknown
- 2006-03-01 MX MX2007009880A patent/MX2007009880A/es unknown
- 2006-03-01 JP JP2007557000A patent/JP4559492B2/ja not_active Expired - Fee Related
- 2006-03-01 KR KR1020077021414A patent/KR20070115974A/ko not_active Application Discontinuation
- 2006-03-01 RU RU2007136800/14A patent/RU2394544C2/ru active
- 2006-03-01 CN CN2006800066642A patent/CN101132751B/zh active Active
- 2006-03-01 WO PCT/SE2006/000265 patent/WO2006093457A1/en active Application Filing
- 2006-03-03 TW TW095107226A patent/TW200642668A/zh unknown
- 2006-03-03 US US11/366,602 patent/US7674949B2/en active Active
- 2006-03-03 AR ARP060100830A patent/AR054742A1/es unknown
-
2007
- 2007-08-31 TN TNP2007000338A patent/TNSN07338A1/en unknown
Also Published As
Publication number | Publication date |
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TNSN07338A1 (en) | 2008-12-31 |
AU2006219108A1 (en) | 2006-09-08 |
TW200642668A (en) | 2006-12-16 |
US20060229579A1 (en) | 2006-10-12 |
JP2008531111A (ja) | 2008-08-14 |
EP1868551A4 (en) | 2013-03-13 |
US7674949B2 (en) | 2010-03-09 |
RU2007136800A (ru) | 2009-04-10 |
CN101132751B (zh) | 2010-11-17 |
BRPI0609391B8 (pt) | 2021-06-22 |
PL1868551T3 (pl) | 2015-10-30 |
MX2007009880A (es) | 2007-10-03 |
BRPI0609391B1 (pt) | 2017-04-25 |
CA2599313A1 (en) | 2006-09-08 |
KR20070115974A (ko) | 2007-12-06 |
BRPI0609391A2 (pt) | 2010-03-30 |
WO2006093457A1 (en) | 2006-09-08 |
ES2544948T3 (es) | 2015-09-07 |
EP1868551B1 (en) | 2015-06-03 |
RU2394544C2 (ru) | 2010-07-20 |
AR054742A1 (es) | 2007-07-11 |
CN101132751A (zh) | 2008-02-27 |
EP1868551A1 (en) | 2007-12-26 |
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