JP4658197B2 - 更に向上したボディフィット性を備えている可撓性吸収性物品 - Google Patents
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- 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
- A61F13/534—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
- A61F13/5376—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 characterised by the performance of the layer, e.g. acquisition rate, distribution time, transfer time
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- 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
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
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- 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
- A61F13/534—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
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- 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
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
- A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
- A61F2013/15357—Stiffness, e.g. Taber rigidity
-
- 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
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
- A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
- A61F2013/15463—Absorbency
-
- 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
- A61F2013/530481—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
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- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Description
i)超吸収性材料を含み、基礎吸収力が10l/m2超で、吸収効率が少なくとも6.5ml/cm3である領域を少なくとも1つ有する貯蔵層を少なくとも1つ有する貯蔵システムと、
ii)セルロース繊維が実質的に含まれていない捕捉システムであって、超吸収性材料を含み、基礎吸収力が1.5〜10l/m2で、吸収効率が2〜14ml/cm3である領域を少なくとも1つ有する捕捉/貯蔵層を有する捕捉システムと、が含まれる。
流体捕捉
流体捕捉試験によって、模擬使用条件下で吸収性構造が水性流体を迅速に捕捉する力の指標を提供する。ポンプ(イリノイ州シカゴのコールパーマーインスツルメンツ社(Cole Parmer Instruments Co.)から入手可能なモデル7520−00)を用いて、所定の容積及び速度で試料に0.9%の生理食塩水溶液の噴出物を充填する。生理食塩水溶液を吸収する時間をタイマーで記録する。5分の噴出間隔で4回の噴出にわたって噴出を繰り返す。以下の詳細な説明は乳幼児用おむつを対象としており、その他のタイプの吸収性物品では、噴出容積と封圧を本明細書の記載に従って調節してよい。
欧州不織布協会(EDANA:European Disposables and Nonwovens Association)の単位面積質量に関する標準法(40.3−90)が適している。
欧州不織布協会(EDANA)の厚みに関する標準法(30.5−99号)が適している。適した装置については、4.1段落に記載されている。規定圧力は2.1kPaである。
前記坪量測定法を用いて割り出した坪量を、前記の厚み測定法によって割り出した厚みで除す。
欧州不織布協会(EDANA)標準方法441.2−02が適している。
捕捉/貯蔵層の領域、又は、貯蔵層の領域のCRCは、修正EDANA標準試験法441.2−02を用いて割り出すことができる。すなわち、この標準試験は、捕捉/貯蔵層の領域、又は、貯蔵層の領域の切断済みサンプルの上に適用する(この試験で用いる超吸収性粉末の標準サンプル0.200gをここでは、層の単一又は複数の領域の切断済みサンプルに置き換えるようにする)。貯蔵層では、20mm×15mmというサンプルサイズを用いる。捕捉/貯蔵層では、40mm×20mmというサンプルサイズを用いる。吸収性物品から吸収性コアを分離させてから吸収性コアの固有の層を分離させ、個々の貯蔵層及び捕捉層を得ることによって、サンプルを得ることができる。これは、代表サンプルが得られるように行わなければならない。続いて、各層のダイカッターを用いて、上に示した寸法のサンプルを切断する。次に、EDANAの方法に規定されているとおりに、各サンプルを処理及び測定しなければならない。例えば、サンプルを密閉容器に保管して、測定前に調節する。
領域の基礎吸収力は、領域のCRCと前記領域の坪量を乗じることによって算出する。前記坪量は、上記の方法で割り出してよい。
基礎吸収力は、層1m2当たりで吸収される流体のKg数で表される。本発明でも用いるように、0.9%の食塩水溶液の密度は約1g/cm3であるため、層1m2当たりの流体のリットル数で記録するのが典型である。
領域の吸収効率は、領域のCRCと前記領域の密度を乗じることによって算出する。前記密度は、上記の方法で割り出してよい。
層の平均基礎吸収力も上に示したように求めてよい。
サンプルの調製
この方法は、切断して6.4cm×6.4cm(2.5インチ×6.5インチ)のサンプルを取れるだけの十分な面積があるコアを備えている吸収性物品、又は、吸収性物品の構成要素の可撓性を測定するのに適している。サンプルは、試験前に、23℃±2℃、及び、50%±2%の相対湿度において少なくとも2時間、平衡を維持しなければならない。吸収性物品がパンツ型おむつの場合には、サイドシールを開く。吸収性物品から全ての弾性素材(レッグカフ、ウエストバンドなど)を取り外す。吸収性物品を平面上で、バックシートを前記表面方向に向けて静かに引き伸ばし、吸収性物品内の全ての襞をなくす。吸収性物品の長手方向軸と横断方向軸の交点に印を付ける。長手方向軸に沿って、吸収性物品の前側ウエストの前方に向かって62mmの位置を測り、第2の印を付ける。6.4cm(2.5インチ)の角ダイとともに油圧プレス(適切なプレスは、インディアナ州ウォバシュのカーバー社(Carver, Inc.)から市販されている)を用いて、第2の印の位置を中心としてサンプルを切断する。
円形曲げ法は、コンピュータインターフェースを備えている定速の引張試験機(適切な計器はテストワークス4(Testworks 4)ソフトウェアを用いているMTS Q−試験機であり、前記試験機はミネソタ州エデンプレーリーのMTSシステム社(MTS Systems Corp)から市販されている)、及び、100Nのロードセルで実施する。前記計器は、ASTM D4032−94(円形曲げ手段による繊維の剛性の標準的試験方法(Standard Test Method for Stiffness of Fabric by the Circular Bend Procedure))に記載されているプラットフォーム及びプランジャー器具を用いて標準的な圧縮試験用に設定する。開口部を覆うようにサンプルをプラットフォーム上の中央に置く。ピストンを引張試験機のクロスヘッドにしっかり接続させ、試験開始時に、開口部の中央に置くとともに、プラットフォームの上面の上20mmの位置に配置する。試験開始後、クロスヘッドの動きによって、プランジャーを100mm/分の速度でプラットフォームの上面から15mmの深さまで降下させる。
各サンプルにつき少なくとも5つの複製を評価する。
この実施例は、先行技術の機械製おむつ製品のコア領域の可撓性を提示することを意図している。この実施例では、股領域の2つの部分(コアの横方向の中央線の前及び後ろ)の円形曲げ時可撓性に関して、本明細書に記載の方法を用いて市販のおむつ、及び、先行技術によるその他のおむつを評価した。この評価結果は表1で見ることができる。
2. ウィスコンシン州ニーナのキンバリークラーク(Kimberly Clark)から入手可能
3. 公開済み米国特許出願第2004/0162536号による貯蔵システムであって、架橋セルロース繊維(250g/m2)と紡毛/樹脂接着ポリエステル不織布(60g/m2)から成る2層式捕捉システムを備えている貯蔵システム
4. 公開済み米国特許出願第2004/0162536号による貯蔵システムであって、紡毛/樹脂接着ポリエステル不織布(43g/m2)から成る不織布捕捉層を備えている貯蔵システム
5. ノースカロライナ州ウィンストンセーレムのヘインズカンパニー社(Hanes Company, Inc.)から入手可能で、股区域に2プライの布地が配置されているヘインズハーウェイ(Hanes Her Way)(登録商標)の綿ブリーフ、サイズ4。可撓性が高いため、力の測定では100Nのロードセルの代わりに10Nのロードセルを用いた。
この実施例は、本発明による吸収性コアの可撓性と捕捉速度を先行技術による2つのコアと比較することを意図している。この実施例では、コアサンプルは、サウスカロライナ州シンプソンビルのBBAファイバーウェブ(BBA Fiberweb)製のスパンボンドポリプロピレンのラミネート18g/m2、及び、オハイオ州メーソンのクロペイプラスチックプロダクツ社(Clopay Plastic Products Company)製のポリエチレンフィルム28g/m2が含まれているバックシートの上に配置するとともに、前記コアサンプルの上にはトップシート(サウスカロライナ州シンプソンビルのBBAファイバーウェブ(BBA Fiberweb)製のスパンボンドポリプロピレン18g/m2)を配置し、股領域の前側部分(コアの横方向の中央線の前)の円形曲げ時可撓性と3回目の噴出物の捕捉速度に関して、前記コアサンプルを評価する。
2. 公開済み米国特許出願第2004/0162536号による貯蔵システム(400g/m2)であって、紡毛/樹脂接着ポリエステル不織布(43g/m2)から成る不織布捕捉層を備えている貯蔵システム
3. 公開済み米国特許出願第2004/0162536号による貯蔵システム(680g/m2)であって、本発明による捕捉/貯蔵層(米国特許出願番号第11/091,255号による坪量200g/m2の超吸収性材料)と紡毛/樹脂接着ポリエステル不織布(60g/m2)から成る貯蔵システム
(実施例3)
2. 英国ライギットのキンバリークラーク(Kimberly Clark)から入手可能
3. ウィスコンシン州ニーナのキンバリークラーク(Kimberly Clark)から入手可能
4. 2層式捕捉システム:巻縮繊維セルロース繊維(200g/m2)と紡毛/樹脂接着ポリエステル不織布(60g/m2)から構成されている。
5. 本発明による捕捉/貯蔵層
Claims (9)
- 吸収性物品であって、
a)流体透過性トップシートと、
b)前記吸収性物品の外辺部の周辺で前記トップシートに接合するバックシートと、
c)前記トップシートと前記バックシートとの間に配置されているコアとを備え、前記コアは、
i)超吸収性材料を含み、基礎吸収力が10l/m2超で、吸収効率が少なくとも6.5ml/cm3である領域を少なくとも1つ有する貯蔵層を少なくとも1つ有する貯蔵システムと、
ii)セルロース繊維を実質的に含まない捕捉システムであって、10%未満(該システムに対する重量比)のセルロース繊維と、重量比で少なくとも90%の超吸収材料とを含み、該超吸収性材料を含んで基礎吸収力が1.5〜10l/m2であって吸収効率が2〜14ml/cm3である領域を有する捕捉/貯蔵層を有し、該捕捉/貯蔵槽内の前記超吸収材料の平均坪量は少なくとも約200g/m 2 である、捕捉システムと、を備え、
前記吸収性物品は、股領域で、約15N未満の円形曲げ時可撓性を有し、
前記捕捉システムは、前記トップシートと前記貯蔵システムとの間に配置される、吸収性物品。 - 前記貯蔵層の前記領域は、少なくとも15l/m2の基礎吸収力と、少なくとも9ml/cm3の吸収効率を有する、請求項1に記載の吸収性物品。
- 前記捕捉/貯蔵層の前記領域は、1.8l/m2〜4l/m2の基礎吸収力と、4〜9ml/cm3の吸収効率を有する、請求項1に記載の吸収性物品。
- 前記貯蔵層が前記領域から構成され、及び/又は、前記捕捉/貯蔵層が前記領域から構成される、請求項1に記載の吸収性物品。
- 前記貯蔵システムがセルロース繊維を実質的に含まず、前記超吸収性材料が熱可塑性材の繊維層によって安定化される、請求項1に記載の吸収性物品。
- 前記捕捉/貯蔵層内の前記超吸収性材料は、400×10−7cm3・s/g以上の修正SFCを有し、前記貯蔵層内の前記超吸収性材料は、80×10−7cm3・s/g以上のSFCを有する、請求項1に記載の吸収性物品。
- 股領域で、約11N未満の円形曲げ時可撓性を有する、請求項1に記載の吸収性物品。
- 前記コアは、約10N未満の円形曲げ時可撓性を有する、請求項1に記載の吸収性物品。
- 更に、前記コアの前側縁部から10cmの位置を測定したときに、約4mm未満の乾燥厚を有する、請求項1に記載の吸収性物品。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70243705P | 2005-07-26 | 2005-07-26 | |
| US81276706P | 2006-06-12 | 2006-06-12 | |
| PCT/US2006/028924 WO2007014233A1 (en) | 2005-07-26 | 2006-07-26 | Flexible absorbent article with improved body fit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2009502339A JP2009502339A (ja) | 2009-01-29 |
| JP4658197B2 true JP4658197B2 (ja) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008524084A Expired - Fee Related JP4658197B2 (ja) | 2005-07-26 | 2006-07-26 | 更に向上したボディフィット性を備えている可撓性吸収性物品 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7851669B2 (ja) |
| EP (1) | EP1912602B1 (ja) |
| JP (1) | JP4658197B2 (ja) |
| AT (1) | ATE523179T1 (ja) |
| CA (1) | CA2616901C (ja) |
| MX (1) | MX2008001104A (ja) |
| WO (1) | WO2007014233A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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-
2006
- 2006-07-26 JP JP2008524084A patent/JP4658197B2/ja not_active Expired - Fee Related
- 2006-07-26 WO PCT/US2006/028924 patent/WO2007014233A1/en not_active Ceased
- 2006-07-26 AT AT06774693T patent/ATE523179T1/de not_active IP Right Cessation
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- 2006-07-26 US US11/493,406 patent/US7851669B2/en not_active Expired - Fee Related
- 2006-07-26 MX MX2008001104A patent/MX2008001104A/es active IP Right Grant
- 2006-07-26 EP EP06774693A patent/EP1912602B1/en not_active Not-in-force
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| WO2007014233A1 (en) | 2007-02-01 |
| CA2616901A1 (en) | 2007-02-01 |
| CA2616901C (en) | 2011-10-25 |
| JP2009502339A (ja) | 2009-01-29 |
| EP1912602A1 (en) | 2008-04-23 |
| US20070027436A1 (en) | 2007-02-01 |
| MX2008001104A (es) | 2008-03-11 |
| ATE523179T1 (de) | 2011-09-15 |
| US7851669B2 (en) | 2010-12-14 |
| EP1912602B1 (en) | 2011-09-07 |
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