JP4739415B2 - 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
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 Download PDFInfo
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- JP4739415B2 JP4739415B2 JP2008524085A JP2008524085A JP4739415B2 JP 4739415 B2 JP4739415 B2 JP 4739415B2 JP 2008524085 A JP2008524085 A JP 2008524085A JP 2008524085 A JP2008524085 A JP 2008524085A JP 4739415 B2 JP4739415 B2 JP 4739415B2
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- core
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- superabsorbent material
- diaper
- absorbent article
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Landscapes
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Description
i)超吸収性材料から成る少なくとも1つの貯蔵層を備える貯蔵システムであって、セルロース繊維を実質的に含まず、及び/又は、熱可塑性材料の繊維層によって前記超吸収性材料が安定化されている貯蔵システム、及び
ii)セルロース繊維が実質的に含まれない捕捉システムであって、前記層同様、超吸収性材料から成る捕捉/貯蔵層を備える捕捉システム
から構成される。
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。
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
この実施例は、本発明によるおむつの乾燥厚さを市販のおむつと公開済み米国特許出願第2004/0162536号に従って作製したおむつと比較することを意図している。この比較結果を表3に示す。
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 (5)
- 吸収性物品であって、
a)流体透過性トップシート、
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、及び
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るコア
を備え、
前記コアは、
i)超吸収性材料を含む少なくとも1つの貯蔵層を備え、セルロース繊維を実質的に含まない貯蔵システムであって、10重量%未満のセルロース繊維と、少なくとも90重量%の前記超吸収性材料とを含み、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、貯蔵システム、並びに
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重量%未満のセルロース繊維と、少なくとも90重量%の超吸収性材料とを含み、前記超吸収性材料を含む捕捉/貯蔵層を備える捕捉システム、
を含み、
当該吸収性物品の円形曲げ可撓性が、当該物品の股領域で約15N未満であり、前記捕捉/貯蔵層内の前記超吸収性材料の修正SFCが400×10−7cm3・s/g以上かつ4000×10 −7 cm 3 ・s/g以下であり、前記貯蔵層内の前記超吸収性材料のSFCが80×10−7cm3・s/g以上であり、前記貯蔵層内の前記超吸収性材料のAAPが20g/g以上である吸収性物品。 - 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接着物質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の修正SFCが500×10−7cm3・s/g以上であり、前記貯蔵層内の前記超吸収性材料のSFCが100×10−7cm3・s/g以上である請求項2に記載の吸収性物品。
- 前記股領域における円形曲げ可撓性が約11N未満である請求項1に記載の吸収性物品。
- 前記コアの円形曲げ可撓性が約10N未満である請求項1に記載の吸収性物品。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US70243705P | 2005-07-26 | 2005-07-26 | |
US60/702,437 | 2005-07-26 | ||
US81276606P | 2006-06-12 | 2006-06-12 | |
US60/812,766 | 2006-06-12 | ||
PCT/US2006/028925 WO2007014234A1 (en) | 2005-07-26 | 2006-07-26 | Flexible absorbent article with improved body fit |
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Publication Number | Publication Date |
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JP2009502340A JP2009502340A (ja) | 2009-01-29 |
JP4739415B2 true JP4739415B2 (ja) | 2011-08-03 |
Family
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JP2008524085A Expired - Fee Related JP4739415B2 (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 (8)
Country | Link |
---|---|
US (1) | US7837662B2 (ja) |
EP (1) | EP1912603B1 (ja) |
JP (1) | JP4739415B2 (ja) |
AT (1) | ATE494871T1 (ja) |
CA (1) | CA2616903C (ja) |
DE (1) | DE602006019603D1 (ja) |
MX (1) | MX2008001103A (ja) |
WO (1) | WO2007014234A1 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
JP2009502340A (ja) | 2009-01-29 |
US20070027435A1 (en) | 2007-02-01 |
EP1912603B1 (en) | 2011-01-12 |
CA2616903C (en) | 2013-06-11 |
EP1912603A1 (en) | 2008-04-23 |
MX2008001103A (es) | 2008-03-11 |
WO2007014234A1 (en) | 2007-02-01 |
CA2616903A1 (en) | 2007-02-01 |
DE602006019603D1 (de) | 2011-02-24 |
US7837662B2 (en) | 2010-11-23 |
ATE494871T1 (de) | 2011-01-15 |
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