JP2017518812A - 湾曲した吸収性材料領域及び真っ直ぐな吸収性材料領域を有する吸収性コア - Google Patents
湾曲した吸収性材料領域及び真っ直ぐな吸収性材料領域を有する吸収性コア Download PDFInfo
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Abstract
Description
本明細書で使用される場合、用語「含む、備える(comprise)」及び「含んでいる、備えている(comprising)」は、非限定的であり、各々、後に続く特徴、例えば構成要素の存在を特定するものであるが、他の特徴、例えば、当該技術分野において既知であるか又は本明細書に開示される要素、工程、構成要素の存在を除外するものではない。動詞「備える」を基本とするこれらの用語は、特徴がその機能を果たす様式に相当に影響を及ぼす、言及されていないいかなる要素、工程、又は成分をも除外する、より狭義の用語「から本質的になる」と、指定されていないいかなる要素、工程、又は成分をも除外する「からなる」という用語とを包含するものとして読まれるべきである。以下に記載する好ましい又は例示的な実施形態はいずれも、特許請求の範囲を限定することが具体的に示されていない限り、特許請求の範囲を限定しない。「典型的には」、「通常は」、「好ましくは」、「有利には」、「具体的には」などの語もまた、特許請求の範囲を限定することが具体的に示されていない限り、特許請求の範囲を限定するようには意図されていない特徴を修飾する。
本明細書で使用される場合、用語「吸収性コア」は、吸収性物品内に配置されるか又は配置されるよう意図されており、コアラップ内に封入された吸収性材料を含む個々の構成要素を指す。本明細書で使用される場合、用語「吸収性コア」には、トップシート、バックシート、及び(存在する場合)吸収性コアの一体部分ではなく、具体的には、コアラップ内に配置されていない捕捉分配層又は多層システムは含まれない。吸収性コアは、典型的には、吸収性物品の全ての構成要素のうちで最も高い吸収能力を有し、超吸収性ポリマー(SAP)の全体又は少なくとも大部分を含む吸収性物品の構成要素である。コアは、コアラップ、吸収性物品、及び接着剤から本質的になるか、又はそれからなってもよい。用語「吸収性コア」及び「コア」は、本明細書では互換可能に用いられる。
コアラップは吸収性材料を封入する。典型的には、かつ図に示すように、コアラップは、第1の基材16及び第2の基材17によって形成され得る。他のコアラップ構成を除外するものではなく、例えば、単一基材を使用してコアラップを形成することも可能である(例えば小包のように)。第1の基材及び第2の基材は、横断方向シール及び長手方向シールを形成することによって、吸収性コアの縁部の少なくとも一部、典型的には全てに沿って互いに付着されてもよい。
吸収性材料は、比較的多量の超吸収性ポリマー(本明細書では「SAP」と呼ばれる)を含む。本発明で有用なSAPとしては、非水溶性ではあるが大量の流体の吸収が可能な種々の水膨潤性ポリマーが挙げられる。吸収性材料は、吸収性材料の少なくとも80重量%、具体的には少なくとも85重量%、90重量%、95重量%、及び最大100重量%の超吸収性ポリマーを含むことができる。したがって、吸収性材料は有利にはSAPからなるか、又はそれから本質的になってもよい。SAPは、典型的には、粒子の形態(超吸収性ポリマー粒子)であってもよいが、例えば超吸収性ポリマー発泡体などの他の形態のSAPを使用することができることを除外するものではない。
吸収性材料は、コアラップ内に、別個の吸収性材料領域のパターンを形成する。パターンは、例えばコアの上側から見たときに、図1〜図3に示される、すなわち吸収性コアの平面に示されるようなものであると考えられる。別個の吸収性材料領域は、吸収性材料を実質的に含まない領域によって分離される。「実質的に含まない」とは、製造プロセス中に生じ得る個々の吸収性材料の粒子による不本意な汚染などの最小量は無視されることを意味する。
吸収性コアは、有利には、少なくとも1つのチャネル形成領域、具体的には、図2に例示的に示すように、少なくとも一対の概ね長手方向に延在するチャネル形成領域を含んでもよく、図2には、コアの中央領域82内に存在する2つのそのようなチャネル形成領域26a、26bが示されている。図3は、コアの前方領域81に向かう2つの小さいチャネル形成領域26aを更に含む吸収性コアを示している。以下では複数形が使用されるが、そのようなチャネル形成領域が1つだけ存在する可能性も包含する。図1に示すように、吸収性コアはまた、そのような吸収性コアを含まなくてもよい。
吸収性コア28は、コアラップの上側及び/又は底側の内側表面上に塗布される補助接着剤72を更に含み得る。補助接着剤は、その上に吸収性材料が堆積される基材上に直接塗布されて、吸収性材料を少なくとも部分的に固定化する助けとなり得る。補助接着剤はまた、チャネル形成領域のコアラップ結合27を少なくとも部分的に形成することができる。補助接着剤72は、基材に対する繊維性熱可塑性材料74(存在する場合)の接着性を高めるのにも有用であり得る。
吸収性コア28はまた、吸収性材料60をコアラップ内で固定化する助けとなるように、マイクロファイバー接着剤としても知られる繊維状熱可塑性接着材料74を含んでもよい。繊維状熱可塑性接着材料74は、コア製造プロセス中に吸収性材料領域がその基材上に堆積された後、典型的には噴霧によって、吸収性材料領域上に塗布されてもよい。繊維状熱可塑性接着材料74は、吸収性材料60、及び吸収性材料領域間の空間内の基材層16又は17と接触する。これによって、それ自体は本質的に長さ方向及び幅方向の寸法と比較して比較的薄い2次元構造である熱可塑性接着材料の繊維状層に本質的に3次元の網状構造が付与される。したがって、繊維状熱可塑性接着材料は、吸収性材料を覆うようにキャビティを提供することができ、それによりこの吸収性材料を固定化する。繊維状接着材は、例えば、吸収層の上に噴霧されてもよい。
本発明の吸収性コア28及び吸収性物品20は、当該技術分野において既知の任意の従来の方法によって製造することができる。具体的には、吸収性コア及び物品は手製であってもよく、又は最新の加工ライン上で高速で工業的に生産されてもよい。本発明の吸収性コアは、具体的には、米国特許出願公開第2006/024433号(Blessing)、同第2008/0312617号及び同第2010/0051166A1号(共にHundorfら)、並びに同第2014/0027066A1号に概ね開示されている方法にいくらかの変更を加えて用いて、いわゆるSAP印刷プロセスによって工業的に製造され得る。このプロセスについてここでより詳細に説明するが、記載されるプロセスを、製品の特許請求の範囲の解釈に対する限定と見なしてはならないことを理解されたい。
乳児用テープ式おむつ20の形態の本発明による例示的な吸収性物品20が、図8〜図10に示されている。図8は、例示的なおむつ20の平らに広げられた状態の平面図であり、おむつ20の構造をより分かりやすく示すために構造体の一部分を切り取って示されている。図9は、図8の横断方向中心線90’に沿ったおむつ20の横断面図である。吸収性コアは、他の吸収性物品、具体的には乳児用おむつ又はトレーニングパンツタイプに使用することができるため、このおむつ20は例示目的のためのみに示されている。
トップシート24は、吸収性物品20の、着用者の肌と直接接する部分である。トップシート24は、バックシート25、吸収性コア28、及び/又は当該技術分野で周知の任意の他の層に接合され得る(本明細書で使用される場合、用語「接合される」は、要素を他の要素に直接取り付けることにより、ある要素が他の要素に直接的に固定される構成、及び要素を中間部材に取り付け、それが他の要素に取り付けられることにより、ある要素が他の要素に間接的に固定される構成を含む)。通常、トップシート24及びバックシート25は、いくつかの箇所(例えば、物品の外周部又はその近く)で互いに直接接合し、他の箇所では、物品20の1つ又は2つ以上の他の要素にこれらを直接接合することにより、一緒に間接的に接合している。
バックシート25は、概して、使用者が着用したときに物品の外側表面の大部分を形成し、かつ、その中に吸収して封じ込められた排泄物がベッドシーツや下着などの物品を汚すのを防止する、吸収性物品20の部分である。吸収性コア28の底側290は、バックシート25に向かって位置付けられる。バックシート25は、典型的には、液体(例えば、尿)に対して不透過性である。バックシート25は、例えば、約0.012mm〜約0.051mmの厚さを有する熱可塑性フィルムなどの薄いプラスチックフィルムであるか、又はそれを含んでもよい。例示的なバックシートフィルムとしては、Richmond,VAを拠点とするTredegar Corporationによって製造され、CPC2フィルムの商品名で販売されているものが挙げられる。他の好適なバックシート材料としては、排泄物がバックシート25を通過するのを防止しつつも、物品20から蒸気を逃すことができる通気性材料が挙げられる。例示的な通気性材料としては、織布ウェブ、不織布ウェブ、フィルム被覆された不織布ウェブなど複合材料、Mitsui Toatsu Co.(日本)によって名称ESPOIR NOで製造され、Tredegar Corporation(Richmond,VA)によって名称EXAIREで販売されているような微孔性フィルム、及び、Clopay Corporation(Cincinnati,OH)によって商品名HYTREL blend P18−3097で製造されているようなモノリシックフィルムが挙げられ得る。いくつかの通気性複合材料については、国際公開第95/16746号(E.I.DuPont)、米国特許第5,938,648号(LaVonら)、同第4,681,793号(Linmanら)、同第5,865,823号(Curro)、同第5,571,096号(Dobrinら)、及び同第6,946,585号(London Brown)により詳細に記載されている。
本発明の吸収性物品は、捕捉層、分配層、又は両方の組み合わせ(本明細書では、まとめて捕捉分配システム(ADS)と呼ばれ、図では単一層54として示されている)を含み得る。ADSの機能は、典型的には、効率的な方法で流体を迅速に捕捉し、それを吸収性コアに分配することである。ADSは、1つ、2つ、又はそれ以上の層を備えてもよく、それらの層は一体の層を形成してもよく、又は互いに取り付けられ得る別個の層のままであってもよい。ADSは、具体的には、2つの層、つまり、分配層と、吸収性コアとトップシートとの間に配設される捕捉層と、を備えているが、本発明はこの例に限定されない。典型的には、SAPは流体の捕捉及び分配を遅らせ得るため、ADSはSAPを含まない。先行技術により、多くのタイプの捕捉分配システムが開示されており、例えば、国際公開第2000/59430号(Daley)、同第95/10996号(Richards)、米国特許第5,700,254号(McDowall)、国際公開第02/067809号(Graef)を参照されたい。ADSは、必須ではないが、分配層及び捕捉層の2つの層を備えてもよく、これらの2つの層についてこれから更に詳細に例示する。
分配層の機能は、コアの吸収性能をより効率的に使用することができるように、侵襲流体液体を物品内のより大きい表面にわたって広げることである。典型的には、分配層は、合成繊維又はセルロース繊維系の比較的密度の低い不織布材料で作製される。分配層の密度は、物品の圧縮度に応じて変化し得るが、典型的には、2.07kPa(0.30psi)で測定して、0.03〜0.25g/cm3、具体的には0.05g〜0.15g/cm3の範囲であってもよい。分配層54はまた、米国特許第5,137,537号に開示されている手順に示されているように測定して、25〜60、好ましくは30〜45の保水値を有する材料であってもよい。分配層54は、典型的には、30〜400g/m2、具体的には100〜300g/m2の平均坪量を有し得る。
−1分子当たり少なくとも3つのカルボキシル基を有するC2〜C9の脂肪族及び脂環式ポリカルボン酸、と、
−1分子当たり2つのカルボキシル基を有し、カルボキシル基の1つ又は両方に対するアルファ位、ベータ位に炭素−炭素二重結合を有するC2〜C9の脂肪族及び脂環式ポリカルボン酸であって、該C2〜C9のポリカルボン酸架橋剤の1つのカルボキシル基が2つ又は3つのいずれかの炭素原子により第2のカルボキシル基から切り離されている、C2〜C9の脂肪族及び脂環式ポリカルボン酸、からなる群から選択されてもよい。繊維は、該繊維と繊維内エステル架橋結合形態で反応させた架橋剤を、セルロース無水グルコースモルのモル数に基づいて計算して、具体的には約1.5モル%〜約6.0モル%有してもよい。架橋剤は、クエン酸、1,2,3,4ブタンテトラカルボン酸、及び1,2,3プロパントリカルボン酸、具体的にはクエン酸からなる群から選択されてもよい。
吸収性物品20は捕捉層を備えてもよく、その機能は、流体をトップシートから離して素早く捕捉し、着用者に優れた乾燥性を提供することである。捕捉層は、典型的には、トップシートの直下に配置される。存在する場合、分配層は、捕捉層の下に少なくとも部分的に配設され得る。捕捉層は、典型的には、スパンボンド、メルトブローン、及び更にスパンボンドされた層、又は、代替的に、カーディングを施された化学結合された不織布を含む不織布材料、例えば、SMS又はSMMS材料であってもよく、又はそれを含んでもよい。不織布材料は、具体的には、ラテックス結合されてもよい。例示的な上部捕捉層が米国特許第7,786,341号に開示されている。使用される繊維が、中実で円形又は丸形で中空のPETステープル繊維(6デニール繊維と9デニール繊維との50/50又は40/60の混合)である場合は特に、カーディングされた樹脂結合不織布が使用されてもよい。例示的な結合剤は、ブタジエン/スチレンラテックスである。不織布は、加工ラインの外側で製造され、ロール材料として保管及び使用され得るという利点を有している。更に有用な不織布が、米国特許第6,645,569号(Cramerら)、同第6,863,933号(Cramerら)、同第7,112,621号(Rohrbaughら)、米国特許出願公開第2003/148684号(Cramerら)、及び同第2005/008839号(Cramerら)に記載されている。
吸収性物品は、締着システムを備えてもよい。締着装置を使用して、吸収性物品を着用者に保持するために吸収性物品の周囲に横方向の張力を提供することができる。トレーニングパンツ物品のウエスト領域は既に結合されているため、この締着システムは、トレーニングパンツ物品には必須ではない。締着システムは通常、例えば、テープタブ、フックとループの締着要素、タブ及びスロット等の連結締着具、バックル、ボタン、スナップ、並びに/又は雌雄同体締着要素等の締着具42を備えてもよいが、任意の他の既知の締着手段も概ね許容できる。締着具42が着脱可能に取り付けられるように、ランディング区域44は通常、物品の前方腰部領域に提供される。いくつかの例示的な表面締着システムが、米国特許第3,848,594号、同第4,662,875号、同第4,846,815号、同第4,894,060号、同第4,946,527号、同第5,151,092号、及び同第5,221,274号(Buell)に開示されている。例示的な連結締着システムが米国特許第6,432,098号に開示されている。締着システムはまた、米国特許第4,963,140号(Robertsonらに)に開示されているように、使い捨て構成で物品を保持するための手段を提供してもよい。
吸収性物品は、当該技術分野で既知のように、前耳部46及び後耳部40を備えてもよい。耳部は、サイドパネルとして、例えば、トップシート及び/又はバックシートから形成されたシャーシの一体部分であってもよい。あるいは、図8に示されるように、耳部は、接着及び/又は熱エンボス加工により取り付けられる別個の要素であってもよい。後耳部40は、有利には、ランディング区域44へのタブ42の取り付けを容易にし、かつテープ式おむつを着用者の腰部の周りの適所に維持することができるように伸縮可能である。また、前耳部46は、最初に吸収性物品を着用者に対して適合した方法でフィットさせ、かつこれらの弾性のある耳部が吸収性物品の側部の拡張及び収縮を可能にするため、吸収性物品が排出物で充填されたときをとうに過ぎている着用時間を通じて上記適合を維持することによって、より快適で輪郭に合ったフィット性を提供するために、弾性又は延伸性であってもよい。
おむつ又はトレーニングパンツのような吸収性物品は、典型的には、着用者の脚の周囲の物品のフィット性を高める構成要素、具体的には、バリアレッグカフ34及びガスケットカフ32を更に備えることができる。バリアレッグカフは、一片の材料、典型的には不織布で形成することができ、これは、物品の残りの部分に部分的に結合され、例えば図8に示されるように物品を平らに引っ張った場合にトップシートによって画定される平面から離れる方向に部分的に持ち上げられることで立ち上がることができる。バリアレッグカフ34は、およそ着用者の胴と脚の連接部にて、液体及び他の身体排泄物の改善された封じ込めを提供することができる。バリアレッグカフ34は、長手方向軸の反対側の吸収性物品の前縁部と後縁部との間に少なくとも部分的に延在し、股ポイント(C)に少なくとも隣接して存在する。
吸収性物品は、改善したフィット性及び封じ込めを提供する上で役立つ、少なくとも1つの弾性的ウエスト機構(図示せず)も備えてもよい。弾性的ウエスト機構は、一般に、弾性的に拡張及び伸縮して、着用者の腰に動的にフィットするよう意図されている。弾性的ウエスト機構は、好ましくは、吸収性コア28の少なくとも1つの腰部縁部から少なくとも長手方向外向きに延在し、吸収性物品の裏面の少なくとも一部を概ね形成する。使い捨ておむつは、一方が前方腰部領域に位置付けられ、他方が後方腰部領域に位置付けられる、2つの弾性的ウエスト機構を有するように構成されてもよい。弾性的ウエスト機構は、米国特許第4,515,595号、同第4,710,189号、同第5,151,092号、及び同第5,221,274号に記載されるものを含む、いくつかの異なる構成で構築されてもよい。
典型的には、隣接する層は、層の表面の全体若しくは一部へのスロットコーティング若しくは吹き付けによる接着剤コーティング、又は、熱結合、又は圧力結合、あるいはそれらの組み合わせなど、従来の結合法を用いて一緒に接合される。構成要素間の結合の多くは、分かりやすく、かつ読み易くするために図面には示されていない。物品の各層間の結合は、特に除外されない限り、存在するものと見なされるべきである。接着剤は、典型的には、例えばバックシートとコアラップとの間の異なる層の接着性を改善するために使用され得る。使用される接着剤は、当該技術分野において既知の任意の標準のホットメルト接着剤であってもよい。
別途指定のない限り、本明細書に示された値は、本明細書で以下に示される方法に従って測定されたものである。別途指定のない限り、全ての測定は、21℃±2℃及び50%±20% RHで実施される。別途記載のない限り、全てのサンプルは、試験を実施する前に少なくとも24時間、これらの条件に保たれて平衡化されるべきである。別途記載のない限り、全ての測定は、少なくとも4つのサンプルで再現され、得られた平均値が示されるべきである。
CRCは、過剰の液体中で自由膨潤する超吸収性ポリマー粒子によって吸収される液体を測定する。CRCを、EDANA法WSP 241.2−05に従って測定する。
この試験を使用して、標準化された様式で吸収性コアの厚さ(使用前、すなわち、流体充填なし)を測定することができる。
吸収性物品厚さ試験は、コアの厚さの代わりに最終吸収性物品の厚さを測定するという点で異なる、乾燥吸収性コア厚さ試験に関して行うことができる。別途記載のない限り、測定点は、吸収性物品の長手方向軸線80’と横断方向軸線90’との交点であってもよい。吸収性物品が折り畳まれた状態で、かつ/又はパッケージ内に提供される場合、測定される物品を広げ、かつ/又はパッケージの中心エリアから取り出す。パッケージが4個を超える物品を収容する場合、パッケージの両側の最も外側の2つの物品が試験で使用される。パッケージが4個を超えるが14個より少ない物品を含む場合、物品のパッケージ2個以上の試験を完了する必要がある。パッケージが14個以上の物品を含む場合、物品のパッケージ1個のみの試験を行う必要がある。パッケージが4個以下の物品を含む場合、パッケージ内の全ての物品を測定し、かつ複数のパッケージの測定を行う必要がある。厚さの読み取り値は、物品をパッケージから取り出し、広げ、状態調整してから24±1時間後に取るべきである。製品の物理的操作は最小限とし、必要なサンプル調製のみに限定されるべきである。
Claims (15)
- 吸収性材料(60)を封入するコアラップ(16、17)を含む、実質的に平面状の吸収性コア(28)であって、前記吸収性コアが、長手方向軸線(80)を有し、前方領域(81)と、後方領域(83)と、中央領域(82)と、を含み、各領域が、前記長手方向軸線に沿って等しい長さ(L/3)を有し、前記吸収性材料が、セルロース繊維を実質的に含まず、別個の吸収性材料領域のパターンを形成し、
前記パターンが、前記長手方向軸線の両側に、
前記コアの前記中央領域内の、少なくとも1つの長手方向に延在する湾曲した領域(601a、601b)と、
前記コアの前記前方領域及び/又は前記後方領域内の、少なくとも1つの長手方向に延在する真っ直ぐな領域(602a、602b)と、
を含むことを特徴とする、吸収性コア(28)。 - 前記長手方向軸線の両側に、前記長手方向に延在する湾曲した領域及び前記長手方向に延在する真っ直ぐな領域が、単一の吸収性材料領域を形成する、請求項1に記載の吸収性コア。
- 前記湾曲した領域(601a、601b)が、前記長手方向軸線に対して対称的に配設され、前記湾曲した領域が、前記長手方向軸線に向かって凹状である、請求項1又は2に記載の吸収性コア。
- 前記パターンが、前記長手方向軸線の両側に複数の湾曲した領域(601a、601b)、具体的には、前記長手方向軸線の両側に2〜10個の湾曲した領域を含む、請求項1〜3のいずれか一項に記載の吸収性コア。
- 前記長手方向軸線(80)と少なくとも部分的に隣接している中央吸収性材料領域(605)を更に含み、具体的には、前記中央吸収性材料領域(605)が、前記コアの前方縁部(280)及び/又は後方縁部(282)に向かって分岐している、請求項1〜4のいずれか一項に記載の吸収性コア。
- 吸収性材料を実質的に含まない少なくとも1つの長手方向に配向されたチャネル形成領域(26)を含み、それを通じて前記コアラップの上側(288)がコアラップ結合(27)に沿って前記コアラップの底側(290)に付着され、それにより前記チャネル形成領域(603、604)に隣接する前記吸収性材料が流体を吸収して膨潤すると、3次元チャネル(260)が前記コアラップ結合に沿って形成される、請求項1〜5のいずれか一項に記載の吸収性コア。
- 前記長手方向軸線に対して対称的に配設された少なくとも一対の長手方向に配向されたチャネル形成領域(26a、26b)を含み、前記長手方向に配向されたチャネル形成領域が、前記コアの前記中央領域(82)内に少なくとも部分的に存在する、請求項6に記載の吸収性コア。
- 前記チャネル形成領域(26)が曲線状であり、好ましくは前記長手方向軸線に向かって凹状である、請求項7に記載の吸収性コア。
- 各チャネル形成領域の長手方向両側に、曲線状の吸収性材料領域(603、604)が隣接している、請求項8に記載の吸収性コア。
- 前記吸収性コアが、約2g〜約16gの吸収性材料、具体的には、超吸収性ポリマー粒子を含む、請求項1〜9のいずれか一項に記載の吸収性コア。
- 前記コアラップ内の前記吸収性材料の少なくとも一部を固定化する熱可塑性接着材料、具体的には、前記コアラップの前記上側(288)及び/若しくは前記底側(290)の内側の補助接着剤(72)、並びに/又はマイクロファイバー接着剤(74)を更に含む、請求項1〜10のいずれか一項に記載の吸収性コア。
- 前記コアラップが、第1の基材(16)及び第2の基材(17)を含み、前記第1の基材が、前記コアラップの前記上側(288)の実質的に全体を形成し、前記第2の基材が、前記コアラップの前記底側(290)の実質的に全体を形成し、前記第1の基材及び前記第2の基材が、前記コアラップの長手方向側縁部(284、286)に沿ってCラップ構成(284’、286’)で封止される、請求項1〜11のいずれか一項に記載の吸収性コア。
- 特に前記吸収性材料の坪量が前記前方領域及び/又は後方領域よりも前記中央領域において高い場合に、前記吸収性材料が前記長手方向に巨視的に浮き上がっている、請求項1〜12のいずれか一項に記載の吸収性コア。
- 請求項1〜13のいずれか一項に記載の吸収性コアの製造方法であって、
−複数のキャビティ(122)を備える印刷ロール(144)を提供する工程と、
−レイオンドラム(132)を提供する工程であって、前記レイオンドラムが、長手方向に延在する湾曲した陥凹部(138’)及び長手方向に延在する真っ直ぐな陥凹部(138’’)を含む少なくとも1つの収容部(133)を備え、前記湾曲した陥凹部及び前記真っ直ぐな陥凹部が任意に接続される、工程と、
−第1の基材(16)をレイオンドラム(132)へ移送する工程と、
−印刷ロール(144)の前記キャビティ(122)に吸収性材料を充填する工程と、
−前記支持基材を有する前記収容部(133)を合流点まで前進させる工程と、
−前記基材が前記レイオンドラムによって支持されている状態で、前記印刷ロールの前記キャビティからの前記吸収性材料を前記合流点で前記基材(16)上に堆積させる工程であって、前記材料が、前記基材の、前記収容部の前記陥凹部に対応する領域内に堆積し、それにより前記堆積した吸収性材料が吸収性材料領域のパターンを形成する、工程と、
−前記堆積した吸収性材料を封入するコアラップを形成する工程であって、前記コアラップが、前記第1の基材(16)及び任意に第2の基材(17)を含む、工程と、
を含む、方法。 - 請求項1〜13のいずれか一項に記載の吸収性コアを含む、吸収性物品(20)。
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EP14170111.0 | 2014-05-27 | ||
EP14170111.0A EP2949301B1 (en) | 2014-05-27 | 2014-05-27 | Absorbent core with curved and straight absorbent material areas |
PCT/US2015/031868 WO2015183670A1 (en) | 2014-05-27 | 2015-05-21 | Absorbent core with curved and straight absorbent material areas |
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JP6356267B2 JP6356267B2 (ja) | 2018-07-11 |
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US (1) | US9974698B2 (ja) |
EP (1) | EP2949301B1 (ja) |
JP (1) | JP6356267B2 (ja) |
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JP6356267B2 (ja) | 2018-07-11 |
US20150342797A1 (en) | 2015-12-03 |
US9974698B2 (en) | 2018-05-22 |
WO2015183670A1 (en) | 2015-12-03 |
EP2949301B1 (en) | 2018-04-18 |
EP2949301A1 (en) | 2015-12-02 |
CN106456413B (zh) | 2019-10-15 |
CN106456413A (zh) | 2017-02-22 |
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