JP2013520241A - 改善された衣類のような特徴を有する吸収性物品 - Google Patents
改善された衣類のような特徴を有する吸収性物品 Download PDFInfo
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- JP2013520241A JP2013520241A JP2012554100A JP2012554100A JP2013520241A JP 2013520241 A JP2013520241 A JP 2013520241A JP 2012554100 A JP2012554100 A JP 2012554100A JP 2012554100 A JP2012554100 A JP 2012554100A JP 2013520241 A JP2013520241 A JP 2013520241A
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Abstract
Description
本方法は、較正されたプログラム可能な機械的引張試験機を用いて、既知の引張力値まで引っ張られるように、おむつ上の物理的な基準点にマークを付け、かつ記録する方法を記載する。本方法はまた、Microsoft Excelのような表計算シートソフトウェアを使用する適切な距離計算の作成プロセスを記載する。これらの計算は、写真分析コンピュータプログラムの使用を通して、デジタルカメラ画像からピクセルx−y座標の測定に基づく。
(i)消費者市販サンプルが個別に販売されている(つまり1つのサンプルが個別に購入されてよい)場合、5つの消費者市販サンプルを得る。
1.製品が締結具結合領域47(図3A〜図3Bに示すように)を有する場合、第1製品マークは締結具結合領域47の中央に載置される。
1.図5Aに示されるように、前述の縁部510が線形であり、引かれた線分512と交差する場合の、サンプル500の物理的縁部510。
1.較正ルーラーをグリップに近接して配置する。ミリメートルで印付けられている較正ルーラーを、ルーラーの目盛り面を測定される製品の表面と同平面上に取り付ける。
機器:
キャリパーの機器:小野測器リニアゲージセンサGS−503に接続された小野測器デジタルゲージDG−3610
コンタクトフット(Contact Foot):直径40mm(+/−0.5mm)を備える平坦な環状フット
重量/圧力:フット及びシャフトの総重量は、サンプルに適用された約689.5パスカル(0.1PSI)と等しい80+/−2gに等しい。円形の重りは、フットに適用されて(すなわち、シャフトの周囲の適用を促進するためにスロットを備える重り)は、標的の重量を達成してもよい。
目盛−mmで目盛が付けられた較正済の金属定規
ストップウォッチ−精度1秒
1.吸収性物品が、その最初の未開封のパッケージ内にある場合、試験される同じ物品が、パッケージの中央領域から取り出される。パッケージが4超の製品を含む場合、パッケージの各面上の最も外側の2つの物品が試験で使用される。
a)カウンター甲板上に物品を平坦に置く。
1.キャリバーゲージコンタクトフットを上昇させ、衣類に面する面を下向きにした状態で、キャリパーゲージベースプレート上に物品を配置する。
各物品に関して、2つのキャリパー測定を平均して、物品の後側腰部領域のキャリパーを測定する。一般的に少なくとも5つのサンプルは、所与の製品に関してこの方式で測定され、後側腰部領域のキャリパーは、平均及び標準偏差を算出するために集約されてもよい。
一実施形態では、吸収性部品は実質的にセルロースを含まない吸収性コア28を含む。好適な吸収性コアの実施例の断面図は、図8〜10に概略的に示されている。吸収性コア28は、その主な役割が液体の身体排泄物を吸収し、かつ保持する吸収性物品の要素である。追加の要素は、吸収性物品のトップシートと、吸収性コアとの間に追加され、身体排泄物のか獲得及び分配を促進してもよい。かかる要素は例えば、当該技術分野において周知であるように、獲得層及び/又は分配層を含み得る。獲得及び/又は分配層は、それら自体は実質的にセルロースを含まなくてもよく(例えば、全体的に不織布材料から作製される)、又は有意な量のセルロース材料を含んでもよい。吸収性コアは一般的に、例えば吸収性ポリマーなど、高い保持能力を有する粒子状の吸収性材料を含み、これらの材料は、吸収性コアの全体の長さに沿って存在する必要はない。いずれかある場合は、少量のみの吸収性ポリマーを含み得る後側腰部領域と比較して、股領域及び/又は前側腰部領域において、より大きな量の吸収性材料を備える吸収性コアを提供することは、有利であり得る。一実施形態では、吸収性コア28は、材料の第1の層281及び第2の層282、並びに第1の層281及び第2の層282との間に配置された吸収性材料283を含む。一実施形態では、材料の第1の層及び第2の層は、不織布繊維ウェブ、織布繊維ウェブ、及び熱可塑性接着剤材料の層のうちの少なくとも1つから選択される材料であってもよい。第1の層及び第2の層は、同じ材料から作製されてもよいが、一実施形態では、第1の層281は不織布繊維ウェブであり、第2の層282は、熱可塑性接着剤材料の層である。不織布繊維ウェブ281は、合成繊維、例えばPE、PET、及びPPの単一構成要素繊維、多構成要素繊維、例えばサイドバイサイド、コア/シース、又はアイランドインザシータイプの繊維を含み得る。かかる合成繊維は、スパンボンディングプロセス又はメルトブロープロセスを介して形成されてもよい。不織布繊維ウェブ281は、繊維の単一層を含んでもよいが、それはまた、多層の繊維、例えば多層のスパンボンド繊維、多層のメルトブロー繊維、又はスパンボンドとメルトブロー繊維の個々の層の組み合わせを備える不織布ウェブを提供することも有利であり得る。一実施形態では、不織布ウェブ281は、ウェブの繊維の表面エネルギーを増加させる剤(例えば界面活性剤)で処理されてもよい。かかる剤は、不織布ウェブを尿などの液体に対して、より透過性にする。他の実施形態では、不織布ウェブは、不織布ウェブの繊維の表面エネルギーを低下させる剤(例えばシリコーン)で処理されてもよい。かかる剤は、不織布ウェブを尿などの液体に対して、透過性を小さくする。
前述のように、可撓性の、少なくとも後ろ区域を有する吸収性物品を提供することが有利となり得る。これは、吸収性物品の後ろ区域に存在する吸収性コアの部分に存在するセルロース材料の量を著しく低減することによって達成され得る。セルロース材料は、それが存在する部品の領域を、具体的には折り重なった吸収性物品の積み重ね体が圧縮されてパッケージされたときに、硬化させる場合があると考えられる。追加の可撓性は、物品の後ろ区域に存在する吸収性コアの部分に存在する吸収性材料の量を著しく低減することによって更に得ることができる。更なる可撓性は、物品の後ろ区域に存在する吸収性コアの部分に存在する熱可塑性接着剤材料の量を著しく低減することによっても得ることができる。一実施形態では、吸収性部品の後ろ区域38の後ろ領域の平均ピーク屈折力は、0.08N未満、0.07N未満、0.06N未満、又は更には0.05N未満である。
ピーク屈曲力及び曲げ剛性は、10Nのロードセルを装着した、コンピュータインターフェースを有する一定速度の拡張引張試験機(好適な機器は、MTS Systems Corp.(Eden Prairie,Minnesota)から入手可能なTestWorks 4ソフトウェアを使用したMTS Allianceである)を使用して測定する。図9(正面図)及び図10(側面図)に示したプランジャブレード2100を上部可動試験用締付具に使用する。図8に示す基部支持プラットフォーム2200を、下部の固定式試験用締付具として使用する。全ての試験は、約23℃±2℃及び相対湿度約50%±2%で維持される調整室内で行なわれる。
Claims (10)
- 前縁部を備える前側領域と、後縁部を備える後側領域と、前記前側領域と前記後側領域との間の股領域と、一対の対向する長手方向縁部と、を有するシャーシを含む、使い捨て吸収性物品であって、前記シャーシは前縁部及び後縁部を有する吸収性コアを含み、前記使い捨て吸収性物品は、
a)第1及び第2の弾性的に伸長可能な耳部であって、前記第1の耳部及び第2の耳部のそれぞれは、上縁部及び下縁部、並びに横軸を有し、前記上縁部及び下縁部のそれぞれは近位端及び遠位端を有し、前記第1の耳部及び第2の耳部は、前記シャーシの前記後縁部と、前記第1及び第2の耳部の下縁部の対応する下方端部を接続する線との間に存在する、前記吸収性物品の後ろ区域を画定する、第1及び第2の弾性的に伸長可能な耳部と、
b)前記第1及び第2の弾性的に伸長可能な耳部にそれぞれ接続された第1及び第2の締結タブであって、前記第1及び第2の締結タブのそれぞれは、上縁部及び下縁部、並びに横軸を有し、前記上縁部及び下縁部のそれぞれは近位端を有する、第1及び第2の締結タブと、を含み、
前記吸収性物品の前記後ろ区域は、1.5mm未満の平均キャリパーを有する前記吸収性コアの一部分を含み、前記第1及び第2の弾性的に伸長可能な耳部は、前記第1及び第2の締結タブのそれぞれの前記横軸が、前記シャーシの前記後縁部と、前記吸収性コアの前記後縁部との間に配置されるように前記シャーシに接続されることを特徴とする、使い捨て吸収性物品。 - 前記吸収性コアが、前記吸収性コアの10重量%未満のセルロース繊維を含むことを特徴とする、請求項1に記載の使い捨て吸収性物品。
- 前記締結タブの前記上縁部及び下縁部が、前記締結タブの前記横軸に対して非対称であることを特徴とする、請求項1又は2に記載の使い捨て吸収性物品。
- 前記吸収性コアが、上面及び下面を有する不織布繊維材料の第1の層、熱可塑性接着剤材料の層、及び前記不織布繊維材料の第1の層の前記上面と前記熱可塑性接着剤材料の層との間の吸収性材料を含むことを特徴とする、請求項1〜3のいずれか一項に記載の使い捨て吸収性物品。
- 前記不織布材料の第1の層の前記上面は、それぞれが有意な量の吸収性材料に直接面する関係にある複数の領域を含むことを特徴とする、請求項4に記載の使い捨て吸収性物品。
- 前記不織布繊維材料の第1の層の前記上面は、それぞれがわずかな量の吸収性材料に面する関係にある複数の領域を含むことを特徴とする、請求項5に記載の使い捨て吸収性物品。
- 前記吸収性コアが、上面及び下面を有する不織布繊維材料の第2の層を更に含み、前記吸収性材料及び前記熱可塑性接着剤材料の層が、前記不織布繊維材料の第1の層の前記上面と、前記不織布繊維材料の第2の層との間にあるようになっていることを特徴とする、請求項6に記載の使い捨て吸収性物品。
- 前記不織布材料の第2の層の前記下面は、それぞれが有意な量の吸収性材料に直接面する関係にある複数の領域を含むことを特徴とする、請求項7に記載の使い捨て吸収性物品。
- 前記不織布繊維材料の前記第1の層及び前記不織布材料の第2の層はそれぞれ、表面エネルギーを有し、前記第1の層の前記表面エネルギーは、前記第2の層の前記表面エネルギーとは異なることを特徴とする、請求項8に記載の使い捨て吸収性物品。
- 前記不織布繊維材料の第2の層は界面活性剤を含むことを特徴とする、請求項9に記載の使い捨て吸収性物品。
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CA2692891A CA2692891C (en) | 2010-02-25 | 2010-02-25 | Absorbent article with improved garment-like character |
PCT/US2011/025834 WO2011106360A2 (en) | 2010-02-25 | 2011-02-23 | Absorbent article with improved garment-like character |
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Also Published As
Publication number | Publication date |
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WO2011106360A3 (en) | 2011-12-29 |
CA2692891C (en) | 2012-10-09 |
US20110208140A1 (en) | 2011-08-25 |
BR112012021095A2 (pt) | 2016-05-17 |
CN102770104A (zh) | 2012-11-07 |
EP2538910B1 (en) | 2024-02-28 |
JP2018027315A (ja) | 2018-02-22 |
CN105167916B (zh) | 2020-12-25 |
EP2538910A2 (en) | 2013-01-02 |
CN105167916A (zh) | 2015-12-23 |
US9220644B2 (en) | 2015-12-29 |
WO2011106360A2 (en) | 2011-09-01 |
CA2692891A1 (en) | 2010-05-06 |
JP2015037592A (ja) | 2015-02-26 |
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