JP2012228517A - 使い捨て吸収性物品 - Google Patents
使い捨て吸収性物品 Download PDFInfo
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- JP2012228517A JP2012228517A JP2012101552A JP2012101552A JP2012228517A JP 2012228517 A JP2012228517 A JP 2012228517A JP 2012101552 A JP2012101552 A JP 2012101552A JP 2012101552 A JP2012101552 A JP 2012101552A JP 2012228517 A JP2012228517 A JP 2012228517A
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Abstract
【解決手段】吸収性コアと、ユーザーの身体に対して着用される上面を有する疎水性トップシート14を有し、トップシートは不織布及び有孔フィルムの群から作製される。1平方メートル当たり0.30〜3.5グラムの範囲の微量の繊維性超吸収性材料が、トップシートの下面と密接する第2トップシート内の繊維状マトリックスに提供され、繊維状マトリックスはセルロース及び二成分繊維と共に不織布キャリア上に超吸収性材料をエアレイイングすることによって作製される。
【選択図】図1
Description
身体に隣接して柔軟性を提供するために、例示されている生理用ナプキン10のトップシート14は、ユーザーの皮膚に刺激がない、柔軟で、平滑で、可撓性で、多孔質な材料から形成される。トップシート14は、物品によって回収されるべき体液に対して透過性でなくてはならず、したがってナプキンに関しては、膣の排泄物に対して透過性でなくてはならない。
生理用ナプキンの吸収性コア18は、使用中に排泄された体液を貯蔵するように機能する。コア18は、多種多様の寸法及び形状で作製することができ、並びに製品の面にわたって異なる場所において、異なる厚さ、親水性勾配、超吸収体勾配、密度、及び平均坪量を有するように形状加工されてもよい。
したがって、バックシート16は、好ましくは液体不透過性薄膜、又は液体不透過性ではあるが蒸気透過性フィルム/不織布積層体、ミクロ孔質フィルム、有孔成形フィルム、又は蒸気透過性であるか、若しくは蒸気透過性にされているが、実質的に流体には不透過性であるその他のポリマーフィルムから作製される。
第2トップシート20は、吸収性コア18とトップシート14との間に介在し、排出された体液、特に月経の流体を隣接する透過性(第1)トップシート14を通じて急速に引き込む役割をする。これは、物品パッドの着用者に隣接する第1トップシート14が、比較的清浄で乾燥したままであるのを可能にする。
例示されている生理用ナプキン10の第2トップシート20は、親水性セルロース繊維の繊維ウェブ又はマトリックスを有し、これは第2トップシート20の坪量に、1平方メートル当たり34グラム寄与する。この繊維ウェブ又はマトリックスは、水溶性流体、具体的には排泄された水溶性体液を処理するための第1媒体を提供する。このウェブ又はマトリックスは典型的に、流体などを処理するための毛管構造を提供する。かかる流体処理は、トップシート14を通じて流体を取得すること、及びこの流体を吸収性コア18に分配することを含む。ウェブは、取得した少量の液体を保存するか、又は分配できない場合がある。
例示されている第2トップシート20の親水性セルロース繊維の構造は、熱可塑性材料によって固めることができる。溶融すると、この熱可塑性材料の少なくとも一部分は、熱可塑性材料の固着箇所になる繊維の交点に移動する。冷却されたとき、これらの交点において熱可塑性材料は固化して、繊維のマトリックス又はウェブ保持する固着箇所を形成する。
本発明で使用されるのに好適な吸収性ゲル材料は実質的に非水溶性で、僅かに架橋し、部分的に中和したポリマーゲル材料を含むことが最も多い。この材料は水に接触するとヒドロゲルを形成する。このようなポリマー材料は、重合可能な不飽和の酸含有モノマーから調製することができる。本発明で使用される高分子吸収性ゲル材料の調製で使用するのに好適な不飽和酸性モノマーには、1987年3月31に発行された米国特許第4,654,039(Brandtら)、及び1988年4月19日にRE 32,649号として再発行されたものが挙げられ、これらの両方は参照により組み込まれる。好ましいモノマーはアクリル酸、メタクリル酸、及び2−アクリルアミド−2−メチルプロパンスルホン酸を含む。アクリル酸それ自体が、高分子ゲル化材料の調製に特に好ましい。不飽和の酸含有モノマーから形成されるポリマー構成成分は、デンプン若しくはセルロースなどの他の種類のポリマー部分にグラフト化されてもよい。この種類のポリアクリレートグラフト化デンプン材料が特に好ましい。従来のタイプのモノマーから調製することができる好ましい高分子ゲル化材料には、加水分解アクリロニトリルグラフト化デンプン、ポリアクリレートグラフト化デンプン、ポリアクリレート、無水マレイン酸系コポリマー、及びこれらの組み合わせが挙げられる。特に好ましいのはポリアクリレート及びポリアクリレートグラフト化デンプンである。
繊維、熱可塑性材料、及び超吸収性材料の混合物は湿式レイイング法及びエアレイイングを含む、様々な技法の任意のものによって層に形成することができる。紙を形成するためにセルロース繊維材料を湿式レイイング技法は当該技術分において周知である。
Claims (10)
- ユーザーの身体に対して着用される上面、及び下面を有するトップシート14と、
吸収性コア18と、
前記トップシート14の前記下面と密接する、微量の超吸収性材料と、を有する、使い捨て物品。 - 前記トップシート14は疎水性である、請求項1に記載の使い捨て物品。
- 前記トップシート14は、不織布トップシート及び有孔フィルムトップシートの群から選択される疎水性トップシートである、請求項2に記載の使い捨て物品。
- 使い捨て吸収性物品は生理用ナプキン及びパンティライナーの群から選択される、請求項1〜3のいずれか一項に記載の使い捨て物品。
- 前記超吸収性材料は繊維性超吸収性材料である、請求項1〜4のいずれか一項に記載の使い捨て物品。
- 前記超吸収性材料は繊維性マトリックスに供給される、請求項1〜5のいずれか一項に記載の使い捨て物品。
- 前記超吸収性材料はエアレイド層に供給される、請求項1〜5のいずれか一項に記載の使い捨て物品。
- 前記超吸収性材料は、1平方メートル当たり約125グラム未満の坪量を有するエアレイド層に供給される、請求項1〜5のいずれか一項に記載の使い捨て物品。
- 前記超吸収性材料の濃度は、超吸収性材料が1平方メートル当たり0.30〜3.5グラムとなる範囲内である、請求項1〜8のいずれか一項に記載の使い捨て物品。
- 前記使い捨て物品は、
非親和性不織布又はフィルムトップシート14と、
吸収性コア18と、
第2トップシート20と、を更に含み、
第2トップシート20は、
a)前記吸収性コア18とトップシート14との間に配置され、
b)表面積1平方メートル当たり40〜80グラムの坪量を有し、かつ
c)不織布キャリア上にエアレイドされた、セルロース、二成分繊維、及び1平方メートル当たり0.30〜1.5グラムの繊維性超吸収性材料の混合物を含有する、請求項1及び4〜9のいずれか一項に記載の使い捨て物品。
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JP2012101552A Pending JP2012228517A (ja) | 2010-09-21 | 2012-04-26 | 使い捨て吸収性物品 |
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US (1) | US8969652B2 (ja) |
EP (1) | EP2618793B1 (ja) |
JP (2) | JP5133470B1 (ja) |
KR (1) | KR20130048258A (ja) |
CN (1) | CN103118646B (ja) |
BR (1) | BR112013004887A2 (ja) |
CA (1) | CA2812268A1 (ja) |
CL (1) | CL2013000754A1 (ja) |
IL (1) | IL225222A0 (ja) |
MX (1) | MX2013003064A (ja) |
RU (1) | RU2552905C2 (ja) |
SG (1) | SG188452A1 (ja) |
WO (1) | WO2012040315A1 (ja) |
ZA (1) | ZA201301707B (ja) |
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CN103118646B (zh) | 2016-03-09 |
RU2013109777A (ru) | 2014-10-27 |
BR112013004887A2 (pt) | 2017-11-21 |
KR20130048258A (ko) | 2013-05-09 |
RU2552905C2 (ru) | 2015-06-10 |
JP5133470B1 (ja) | 2013-01-30 |
US20120071847A1 (en) | 2012-03-22 |
WO2012040315A1 (en) | 2012-03-29 |
IL225222A0 (en) | 2013-06-27 |
CL2013000754A1 (es) | 2013-08-30 |
WO2012040315A4 (en) | 2012-05-18 |
MX2013003064A (es) | 2013-05-30 |
EP2618793B1 (en) | 2018-01-10 |
SG188452A1 (en) | 2013-04-30 |
JP2013508098A (ja) | 2013-03-07 |
EP2618793A1 (en) | 2013-07-31 |
CN103118646A (zh) | 2013-05-22 |
US8969652B2 (en) | 2015-03-03 |
CA2812268A1 (en) | 2012-03-29 |
ZA201301707B (en) | 2014-08-27 |
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