JP2005523113A - 単一吸収性構造を有する使い捨て吸収性物品 - Google Patents
単一吸収性構造を有する使い捨て吸収性物品 Download PDFInfo
- Publication number
- JP2005523113A JP2005523113A JP2003587295A JP2003587295A JP2005523113A JP 2005523113 A JP2005523113 A JP 2005523113A JP 2003587295 A JP2003587295 A JP 2003587295A JP 2003587295 A JP2003587295 A JP 2003587295A JP 2005523113 A JP2005523113 A JP 2005523113A
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- core
- layer
- fibers
- liquid
- absorbent
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- 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.)
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- A61F2013/530547—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials being only in particular parts or specially arranged positioned in a separate layer or layers
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- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F2013/53721—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction with capillary means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
- A61F2013/53908—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers with adhesive
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
- A61F2013/5395—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers with thermoplastic agent, i.e. softened by heat
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
- A61F2013/53991—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers by ultrasonic method
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/28—Polysaccharides or their derivatives
Abstract
Description
使い捨て吸収性物品は液体付着領域を有し、ここでは、物品の通常の使用中、液体が物品内へ吸収されるために付着する。
(トップシート)
本発明によれば、吸収性物品は液体透過性トップシートを具備する。本明細書に用いるのに好適なトップシートは、織布と、不織布と、液体透過性開口を具備する液体不透過性ポリマーフィルムの3次元ウェブとを含む。図1において、トップシートは参照番号30で示される。
本発明によれば、本明細書に用いるのに好適な吸収性コアは単一である。図1において、吸収性コアは、サブ層41、42、43、44により構成された単一の層40として示されている。
本発明の吸収性コアは、高い蒸気透過性と、好ましくは高い空気透過性も有するべきである。吸収性コアは、好ましくは、12mm未満、好ましくは8mm未満、より好ましくは5mm未満、最も好ましくは4mm〜2mmのキャリパー、即ち厚さを有する。
本発明によれば、吸収性コアは以下のサブ層を含む:(a)オプションにより中間層42と共に、トップシート30に隣接する表面を提供する第一の最も外側の層41;(b)流体貯蔵層43;(c)バックシートに隣接する表面を提供する第二の最も外側の層44。
本発明による吸収性コアの1つの構成要素は、第一層である。第一層は、トップシートの下に配置され、トップシートと直接的に流体連通している。トップシートは、獲得した流体をこの第一層に移動させて、最終的に貯蔵層へ分配する。この一次分配層を通過する流体の移動は、厚さ方向だけでなく、吸収性製品の長さ及び幅の方向に沿っても起こる。
第一層と流体連通して、典型的にはその下に配置されているのは、流体貯蔵層(43)である。流体貯蔵層は、「ヒドロゲル」、「超吸収体」、「ヒドロコロイド」材料と通常呼ばれる吸収性ゲル材料を、好適なキャリアと組み合わせて含む。
本発明の吸収性コアに含まれる第二の最も外側の層は繊維質の層44であり、この層は貯蔵層に隣接し、典型的にはその下側に配置される。この下側に配置される繊維質の層、即ち第二の最も外側の層は、吸収性単一コアの衣類に面する表面を形成する。柔軟剤で処理されたセルロース繊維により提供される第二層は、このセルロースに特に良好な濡れ表面と低減された弾力性とをもたらし、これにより、物品の使用中、着用者から最も離れた吸収性構造の層に、より密なクッション効果が生じる。この層は、吸収性構造の全重量の30%〜50%を提供し、またこれは柔軟剤で処理されたセルロース繊維又はビスコース繊維又はこれらの組み合わせのみにより提供されるべきである。しかしながら、柔軟剤で処理されたかかるセルロース毛羽材料に見られる大量の短繊維のために、この層の最も外側の表面、即ち、衣類に面する表面に微量の結合剤を噴霧するか、又は別の方法で分配することが可能である。この結合剤は、吸収性コア全体の結合を意図するものでも助けるものでもなく、単に第二層の表面から出る埃と破断した繊維とを低減するのみである。特に、これは、吸収性コアの性能面の効果を意図しているのではなく、単に防塵用結合剤の製造方法に関連した用途である。かかる結合剤の量は、吸収性コアの0重量%〜2重量%、好ましくは1重量%〜0重量%であることができるが、勿論、かかる物品の製造中に別の手段により防塵を達成できる場合には除去するのが好ましい。結合剤は例えばラテックスタイプの結合剤であることができるが、単に水を使用することも可能であることが分かった。
本発明による吸収性コアは、通常は吸収ウェブ内に存在するその他の任意構成要素を含むことができる。例えば、第一層又は流体貯蔵層に近接して、又はその一部として、ゼオライト、カーボンブラック、珪酸塩、EDTA又は他のゼラチン類などの賦香剤を提供することができる。かかる薬剤は、粒子状形態にて、又は微粒子の一部として提供されるのが好ましく、例えば前述の吸収性ゲル材料と共に提供されることができる。
本発明によれば、単一コアは、単独の単一構造として設けられる。熱結合又はフェルティング又はこれら結合工程の組み合わせによりコアが作られる。従って、任意の結合を行う前の単一コアは、上述の様々な材料を互いに重ね合わせ、その後、構造の厚さ又は嵩を低減するべくカレンダー工法が行われることにより作られる必要がある。このカレンダー工程は高密度化を生じさせ、構造全体にわたって同じ力を与える。このカレンダー工法の後に、熱結合若しくは針によるフェルティング、又は熱針によるフェルティングや単一吸収性コア構造の熱風曝露のような組み合わせが行われる。
本発明による吸収性物品はまた、バックシート(50)を具備する。バックシートは主に、吸収性構造に吸収され且つ保持されている滲出物が、パンツ、ズボン、パジャマ、下着、及びシャツ又はジャケットなどの吸収性物品と接触する材料を濡らすのを防ぎ、これにより、流体移動に対するバリアとして作用しなければならない。しかしながら、更に、本発明の好ましい実施形態によるバックシートは、少なくとも水蒸気、好ましくは水蒸気と空気の両方を移動させることもでき、従って、物品内に空気を、物品外に水蒸気を循環させることができる。バックシートは、典型的には、吸収性構造全体にわたって伸長し、もし存在するならサイドフラップ、サイドラップ要素又はウィングまで延びて、これらの一部又は全体を形成することができる。
本発明によれば、物品の要素、即ちトップシート、バックシート及び吸収性コア要素は、互いに接合される。要素即ち層は、それらの共通の界面の全体又は部分又は一部にわたって共に接合される。このように、トップシートは吸収性コアに接合され、コアはバックシートに接合される。更に、バックシートが2つ以上の層を含む場合、これらの層も同様に接合されてもよい。特に好ましい実施形態において、トップシートとバックシートは吸収性コアの周域を越えて伸長し、トップシートは、吸収性コアを封じ込めるようにバックシートに直接的に(又は間接的に)接合される。この関連において、間接的な接合としては、接着剤層又は別の層のような中間層による接合が挙げられ、一方、直接的な接合としては、分配された接着剤の網状組織又は接合される層同士を直接的に接触させる他の手段により接着接合することが挙げられる。
Claims (7)
- 液体付着領域を有する使い捨て吸収性物品であって、
− 前記物品の最も外側の表面であって着用者に面する表面を形成し、少なくとも前記液体付着領域において単一の層から成る液体透過性トップシートと、
− 前記物品の液体バリア表面であって、衣類に面する表面を形成するバックシートと、
− 前記トップシートと前記バックシートとの中間にある吸収性コアとを具備し、
前記コアは単一であり、前記トップシートに直接隣接する着用者に面する表面と、前記バックシートに直接隣接する衣類に面する表面とを有し、前記単一コアは、少なくとも3層の繊維質の層化構造体であり、全ての層は単独の熱結合工程又は単独のフェルティング工程又はこれらを組み合わせた工程により、しかし層の間に接着剤を使用することなく、単一化されて前記単一コアとなり、前記コアは、
− 前記コアの前記着用者に面する表面を形成する第一の最も外側の層であって、2成分繊維と、セルロース又はビスコース繊維、好ましくは非柔軟化セルロース繊維との混合物から提供され、全コア構成の10%〜30%の重量比を有する第一層と、
− 前記コアの前記衣類に面する表面を形成する第二の最も外側の層であって、コア全体の30%〜50%の重量比を有する柔軟剤で処理されたセルロース繊維と、前記コアの前記衣類に面する表面にある、前記コアの0重量%〜2重量%の量の表面結合剤、好ましくはラテックスとにより提供される第二層と、
− 前記第一層と前記第二層との間に挟まれた少なくとも1つの内層であって、非柔軟化セルロース繊維またはオプションにより2成分繊維を含み、更に超吸収剤を含み、前記コア全体の30%〜50%の重量比を有する内層とを具備し、
− 前記単一コアが、前記コア層におけるオプションによる前記2成分繊維と、前記コアの前記衣類に面する表面の前記表面結合剤以外には、結合剤を含まないことを特徴とする使い捨て吸収性物品。 - 前記表面結合剤が存在しない請求項1に記載の使い捨て吸収性物品。
- 前記コアの前記第一層が、60重量%〜95重量%の2成分繊維と、5重量%〜40重量%のセルロース又はビスコース繊維とを含む請求項1又は2に記載の使い捨て吸収性物品。
- 前記2成分繊維がその断面に、ポリプロピレンの中心部分と、前記ポリプロピレン中心部分を囲むポリエチレンの外側コーティングとを有する請求項1〜3のいずれか1項に記載の使い捨て吸収性物品。
- 前記2成分繊維が、前記中心部分及び前記外側コーティングを前記断面の中心点に対して非対称に配置させることによってカールされている請求項3に記載の使い捨て吸収性物品。
- 前記吸収性コアの前記内層における前記2成分繊維が、少なくとも10デシテックス、好ましくは12デシテックス〜20デシテックス、より好ましくは15デシテックス〜18デシテックスの粗さにより画定された大径を有する請求項1〜5のいずれか一項に記載の使い捨て吸収性物品。
- 前記吸収性コアにおける前記2成分繊維の全てが同一である請求項1〜6のいずれか一項に記載の使い捨て吸収性物品。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02009095A EP1356797B1 (en) | 2002-04-24 | 2002-04-24 | A disposable absorbent article with unitary absorbent structure |
PCT/US2003/012884 WO2003090656A1 (en) | 2002-04-24 | 2003-04-24 | A disposable absorbent article with unitary absorbent structure |
Publications (2)
Publication Number | Publication Date |
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JP2005523113A true JP2005523113A (ja) | 2005-08-04 |
JP4531401B2 JP4531401B2 (ja) | 2010-08-25 |
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JP2003587295A Expired - Fee Related JP4531401B2 (ja) | 2002-04-24 | 2003-04-24 | 使い捨て吸収性物品 |
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US (6) | US8461412B2 (ja) |
EP (1) | EP1356797B1 (ja) |
JP (1) | JP4531401B2 (ja) |
CN (1) | CN100376223C (ja) |
AT (1) | ATE348585T1 (ja) |
AU (1) | AU2003231109A1 (ja) |
DE (1) | DE60216892T2 (ja) |
MX (1) | MXPA04010043A (ja) |
WO (1) | WO2003090656A1 (ja) |
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2002
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- 2002-04-24 DE DE60216892T patent/DE60216892T2/de not_active Expired - Lifetime
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- 2003-04-10 US US10/412,846 patent/US8461412B2/en active Active
- 2003-04-24 AU AU2003231109A patent/AU2003231109A1/en not_active Abandoned
- 2003-04-24 MX MXPA04010043A patent/MXPA04010043A/es active IP Right Grant
- 2003-04-24 JP JP2003587295A patent/JP4531401B2/ja not_active Expired - Fee Related
- 2003-04-24 CN CNB038092859A patent/CN100376223C/zh not_active Expired - Fee Related
- 2003-04-24 WO PCT/US2003/012884 patent/WO2003090656A1/en active Application Filing
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- 2013-05-14 US US13/893,986 patent/US8841506B2/en active Active
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- 2014-08-19 US US14/462,603 patent/US9144524B2/en not_active Expired - Fee Related
- 2014-10-30 US US14/528,244 patent/US9138360B1/en not_active Expired - Fee Related
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- 2015-09-02 US US14/843,493 patent/US10034800B2/en not_active Expired - Lifetime
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- 2018-06-28 US US16/021,136 patent/US11160695B2/en active Active
Cited By (3)
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JP2007154350A (ja) * | 2005-12-02 | 2007-06-21 | Kobayashi Pharmaceut Co Ltd | 体液吸収性シート |
JP4624247B2 (ja) * | 2005-12-02 | 2011-02-02 | 小林製薬株式会社 | 体液吸収性シート |
JP2013517859A (ja) * | 2010-01-28 | 2013-05-20 | グラトフェルター ファルケンハーゲン ゲゼルシャフト ミット ベシュレンクテル ハフツング | 柔軟性のある高吸収性を有する材料 |
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US20180311082A1 (en) | 2018-11-01 |
CN100376223C (zh) | 2008-03-26 |
US20130253460A1 (en) | 2013-09-26 |
AU2003231109A1 (en) | 2003-11-10 |
EP1356797B1 (en) | 2006-12-20 |
US9138360B1 (en) | 2015-09-22 |
US8841506B2 (en) | 2014-09-23 |
WO2003090656A1 (en) | 2003-11-06 |
DE60216892D1 (de) | 2007-02-01 |
US10034800B2 (en) | 2018-07-31 |
EP1356797A1 (en) | 2003-10-29 |
US11160695B2 (en) | 2021-11-02 |
US9144524B2 (en) | 2015-09-29 |
DE60216892T2 (de) | 2007-08-30 |
CN1649554A (zh) | 2005-08-03 |
US20030204178A1 (en) | 2003-10-30 |
US20140358103A1 (en) | 2014-12-04 |
US8461412B2 (en) | 2013-06-11 |
US20150366728A1 (en) | 2015-12-24 |
ATE348585T1 (de) | 2007-01-15 |
MXPA04010043A (es) | 2004-12-13 |
JP4531401B2 (ja) | 2010-08-25 |
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