JP2005514232A - 弾性ストランド接合ラミネート - Google Patents
弾性ストランド接合ラミネート Download PDFInfo
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Abstract
Description
「二成分フィラメント」又は「二成分繊維」という用語は、押し出され、互いに形成されて1つの繊維を形成する少なくとも2つのポリマーから形成される繊維を意味し、ここでは、「コンジュゲート」又は「多成分」繊維とも呼ぶこともできる。「二成分」は、特に示されない限り、二成分のポリマーだけに限定するように意味するものではない。ポリマーは、二成分繊維の断面にわたってほぼ一定に位置された区別可能な区域に配置され、該二成分繊維の長さに沿って連続的に延びる。繊維の断面にわたってほぼ一定に位置された区別可能な区域に配置され、該コンジュゲート繊維の長さに沿って連続的に延びる。こうした二成分繊維の構成は、例えば、一方のポリマーが他方のポリマーによって囲まれる鞘/芯配置とするか、又は並列構成、或いは横方向3層並列配置とすることができる。二成分繊維は、一般に、Kaneko他に付与された米国特許第5,108,820号、Strack他に付与された米国特許第5、336、552号、及びPike他に付与された米国特許第5,382,400号に教示されている。二成分繊維においては、ポリマーは、75/25、50/50、25/75の比率か又はその他の所望の比率で存在することができる。顔料及び界面活性剤のような従来の添加剤を、一方又は双方のポリマーの流れに組み込むか、又はフィラメントの表面に適用することができる。
「接触接着」又は「接触粘着」という用語は、粘着性面が、結合部を形成するために液体状態に入る材料の1つを必要とすることなく、接着して結合部を形成する接着システムを指す。
ここで用いられる「機械方向」すなわちMDという用語は、布が製造される方向における布の長さを意味する。「機械横方向」すなわちCDという用語は、布の幅、すなわちMDにほぼ垂直な方向を意味する。
「ポリマー」という用語は、単独重合体と、(例えば、ブロック共重合体、グラフト共重合体、ランダム共重合体、及び交互共重合体)共重合体と、三元重合体等、及びそれらの配合物及び変成物を含むが、これらに限られるものではない。さらに、特に限定されていない限り、「ポリマー」という用語は、材料の可能性のある全ての幾何学的形状を含む。これらの形状は、これらに限られるものではないが、アイソタクチック対称、シンジオタクチック対称、及びアタクチック対称を含む。
「約」「ほぼ」のような程度を表す言葉は、ここでは、「記載された条件に内在する製造公差及び材料公差が与えられた場合は〜で、又は〜付近で」という意味で用いられ、かつ、本発明の開示内容の利点を不当に利用する無法な権利侵害を防ぐために用いられ、正確な又は絶対的な図面は、本発明の理解を助けるものとして記載される。
本発明の特定の態様及び実施形態が、使い捨て吸収体物品に関して説明され、より具体的には、限定的なものではなく単に例証として、弾性の側部パネルを有する使い捨てトレーニングパンツ衣類又は水着として言及される。しかしながら、本発明の態様は、吸収性であろうとなかろうと、容易に製造された伸縮自在の領域を必要とする、婦人用衛生用品、種々の失禁用衣類、医療用衣類、その他の使い捨て衣類のような、他の伸縮自在の領域及び他の衣類又はパーソナルケア用品の種類を製造するために用いる得ることも容易に明らかである。典型的には、こうした使い捨て衣類は、限られた使用が意図されており、再使用のために洗濯されるか又は他の手法で洗浄されることを意図されていない。例えば、使い捨てトレーニングパンツは、着用者により汚された状態になった後に廃棄される。
向上されたフィット性を与え、衣類20からの身体排出物の漏れを減らすのを助けるために、衣類の脚部カフス35及びウエスト縁部37を、適切な弾性部材を用いて伸縮自在にすることができる。例えば、図1に示されるように、衣類20は、漏れを減らし、向上された快適性と外観を与えるために、衣類20の側縁に作動的に張力を与え、着用者の脚の周りにぴったりとフィットできる伸縮自在な脚部バンドを与えるように構成された脚部弾性体36を含むことができる。衣類20のウエスト縁部37を伸縮自在にし、ウエストバンドを伸縮自在にするために、ウエスト弾性体38を用いることができる。ウエスト弾性体38は、着用者のウエストの周りに弾性的でぴったりとした快適なフィット性を与えるのを助ける形状にされる。
別の代替物として、図4を参照すると、ポリエチレンのほぼ連続的なスパンボンド繊維のようなモノフィラメント62に、該繊維62の表面に移動する選択的粘着付与剤が装填される。したがって、この選択的に移動する粘着付与剤を有するモノフィラメント繊維は、二成分処理のあらゆる特別な要求をなくすことができる。こうしたフィラメント及び選択的に移動する粘着付与剤の例には、水素化炭化水素樹脂の粘着付与剤を有するポリエチレン繊維が含まれる。
本発明の一実施形態においては、一連のロールの各々は、前のロールの速度より速い速度で回転する。例えば、図5を参照すると、チル・ロール74が速度「x」で回転する場合には、延伸ロール80は、例えば約1.15xといったさらに速い速度で回転し、第2延伸ロール82は、例えば約1.25xから約7xまでのさらに速い速度で回転する。その結果、フィラメント72は、最初の予め延伸された長さの約100%から約800%までだけ延伸することができる。
本発明の特定の態様において、ニップ・ローラは、平坦なカレンダー・ロールの使用によって最大の結合領域を設けるように設計することができる。或いは、パターン・ローラが、ラミネートの増加した嵩又は延伸のような特定の利点を生み出すことができ、表面材とストランドとの間の接触接着の強さが過度にもたらされない場合に該パターン・ローラを用いることができる。カレンダー・ロールは、種々のラミネート成分の融点より低い温度まで加熱することができ、又は自然放熱し、或いは冷やすことができる。
次に、フィラメント104は、該フィラメントを伸ばし、これに張力をかけるために、張力ローラ110によって延伸される。張力ローラ110には、フィラメント104の接着のための親和力をほとんどもたない面が設けられることが望ましい。
VFL工程におけるように、ニップ・ローラ120は、望ましくは、平坦なカレンダー・ロールの使用によって100%の結合領域を提供するように設計することができ、或いはパターン化された結合領域を提供することができる。ローラ120は、種々のラミネート成分の融点よりより低い温度まで加熱することができ、又は自然放熱し、或いは冷やすことができる。
このように、軽量で、可撓性で、容易に製造された、見た目のよい弾性ラミネートについて説明したが、当業者であれば、多くの変形を思いつくことができることが理解される。したがって、本発明は、添付の特許請求の範囲によってのみ制限されるように意図され、ここに述べられる例示的な実施形態及び態様によって制限されることは意図されていない。
Claims (26)
- a)第1表面材ウェブと、
b)第2表面材ウェブと、
c)前記第1表面材ウェブと前記第2表面材ウェブとの間に配置された複数の熱可塑性エラストマー繊維ストランドと、
からなり、
d)前記繊維ストランドが、弾性芯及び接着性面を有し、前記接着性面を用いて接触接着により前記第1表面材ウェブ及び前記第2表面材ウェブを互いに結合させて、弾性ラミネートが生成された、
ことを特徴とする弾性ラミネート。 - a)衣類の内側の肌に面する側になるように構成された第1ウェブと、
b)衣類の外側になるように構成された第2ウェブと、
c)前記第1ウェブと前記第2ウェブとの間に配置された複数の熱可塑性エラストマー繊維と、
から本質的になり、
d)前記繊維が、弾性芯及び接着性面を有し、前記接着性面との接触により、前記第1ウェブと前記第2ウェブを互いに結合させて、弾性ラミネートが生成された、
ことを特徴とする弾性ラミネート。 - 前記熱可塑性繊維が非接着性の弾性芯を有することを特徴とする請求項2に記載の弾性ラミネート。
- 前記熱可塑性繊維が、華氏200度を超える融点を有することを特徴とする請求項2に記載の弾性ラミネート。
- 前記熱可塑性繊維が、内部に粘着付与剤の化合物を有する熱可塑性エラストマー・ポリマーを含むホモフィラメントを含み、前記粘着付与剤が、接着剤となるように、前記フィラメントの表面に集められたことを特徴とする請求項4に記載の弾性ラミネート。
- 前記ホモフィラメントが弾性ブロック共重合体からなることを特徴とする請求項5に記載の弾性ラミネート。
- 前記粘着付与剤が、水素化炭化水素樹脂の粘着付与剤を含むことを特徴とする請求項6に記載の弾性ラミネート。
- 前記熱可塑性繊維が、実質的鞘/芯構造、又は部分的鞘/芯構造の単一成分繊維を含み、前記繊維の芯部分が非接着性エラストマーであり、鞘部分が粘着性であることを特徴とする請求項3に記載の弾性ラミネート。
- 前記接着剤が、エラストマー/粘着付与剤の配合物であることを特徴とする請求項8に記載の弾性ラミネート。
- 前記繊維が二成分のスパンボンドであることを特徴とする請求項8に記載の弾性ラミネート。
- 前記繊維が二成分のメルトブローであることを特徴とする請求項8に記載の弾性ラミネート。
- 前記第1ウェブが、ほぼ連続的なスパンボンド・ポリプロピレン・フィラメントを含む、約0.1osyから約4.0osyまでの坪量の不織ウェブであることを特徴とする請求項2に記載の弾性ラミネート。
- 前記第2ウェブが、ほぼ連続的なスパンボンド・ポリプロピレン・フィラメントを含む、約0.1osyから約4.0osyまでの坪量の不織ウェブであることを特徴とする請求項2に記載の弾性ラミネート。
- 前記第1ウェブが不織ウェブであることを特徴とする請求項2に記載の弾性ラミネート。
- 前記第2ウェブが不織ウェブであることを特徴とする請求項2に記載の弾性ラミネート。
- 使い捨て衣類のための弾性ラミネートであって、
a)衣類の内側の肌に面する側になるように構成された第1ウェブと、
b)衣類の外側になるように構成された第2ウェブと、
c)前記第1ウェブと前記第2ウェブとの間に配置された複数の熱可塑性エラストマー繊維と、
からなり、
d)前記繊維が弾性芯及び接着性面を有し、前記接着性面における接触により前記第1ウェブと前記第2ウェブを互いに結合させて、弾性ラミネートが生成された、
ことを特徴とする弾性ラミネート。 - 使い捨て衣類のためのよられた弾性ラミネートの製造方法であって、
a)第1ウェブを準備し、
b)第2ウェブを準備し、
c)エラストマー芯及び接着性面を有する複数のエラストマー繊維を押し出し、
d)前記複数のエラストマー繊維を前記第1ウェブと前記第2ウェブとの間に配置してラミネートを生成し、
e)前記エラストマー繊維を間にした状態で前記第1及び第2ウェブの前記ラミネートを圧縮し、接触接着により、該第1及び第2ウェブを前記粘着性繊維に接着させる、
段階を含むことを特徴とする方法。 - 非接着性芯を用いて前記複数のエラストマー繊維を準備する段階をさらに含むことを特徴とする請求項17に記載の方法。
- 剥離層を用いて、前記複数のエラストマー繊維をチル・ロール上に押し出す段階をさらに含むことを特徴とする請求項17に記載の方法。
- 前記複数のエラストマー繊維を前記チル・ロールから取り除くときに、該複数のエラストマー繊維に張力をかける段階をさらに含むことを特徴とする請求項19に記載の方法。
- 前記複数のエラストマー繊維を二成分の鞘/芯繊維として押し出す段階をさらに含むことを特徴とする請求項17に記載の方法。
- 前記複数のエラストマー繊維を成形用ワイヤ上に押し出す段階をさらに含むことを特徴とする請求項21に記載の方法。
- 前記複数のエラストマー繊維を部分的鞘/芯メルトブローン・フィラメントとして押し出す段階をさらに含むことを特徴とする請求項22に記載の方法。
- 前記第1ウェブ及び前記第2ウェブのうちの少なくとも1つを不織ウェブとして準備する段階をさらに含むことを特徴とする請求項17に記載の方法。
- 側部パネルとして内部に組み込まれた請求項1の弾性ウェブを含むことを特徴とする使い捨て衣類。
- 請求項17の方法に従って作られ、側部パネルとして内部に組み込まれた弾性ウェブを含むことを特徴とする使い捨て衣類。
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US10/034,335 US6902796B2 (en) | 2001-12-28 | 2001-12-28 | Elastic strand bonded laminate |
PCT/US2002/037798 WO2003057469A1 (en) | 2001-12-28 | 2002-11-26 | Elastic strand bonded laminate |
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-
2001
- 2001-12-28 US US10/034,335 patent/US6902796B2/en not_active Expired - Fee Related
-
2002
- 2002-11-26 MX MXPA04005540A patent/MXPA04005540A/es active IP Right Grant
- 2002-11-26 AU AU2002362021A patent/AU2002362021B2/en not_active Ceased
- 2002-11-26 CN CNB028249135A patent/CN1272165C/zh not_active Expired - Fee Related
- 2002-11-26 DE DE60239291T patent/DE60239291D1/de not_active Expired - Lifetime
- 2002-11-26 EP EP02797146A patent/EP1458562B1/en not_active Expired - Lifetime
- 2002-11-26 JP JP2003557809A patent/JP4170225B2/ja not_active Expired - Fee Related
- 2002-11-26 KR KR1020047009102A patent/KR100926388B1/ko not_active IP Right Cessation
- 2002-11-26 BR BR0214945-1A patent/BR0214945A/pt not_active IP Right Cessation
- 2002-11-26 WO PCT/US2002/037798 patent/WO2003057469A1/en active IP Right Grant
- 2002-12-26 AR ARP020105100A patent/AR038070A1/es active IP Right Grant
-
2004
- 2004-06-09 CO CO04054287A patent/CO5590944A2/es not_active Application Discontinuation
- 2004-06-14 ZA ZA2004/04698A patent/ZA200404698B/en unknown
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WO2008081662A1 (ja) * | 2006-12-28 | 2008-07-10 | Kao Corporation | 伸縮シート及びその製造方法 |
JP2008240205A (ja) * | 2007-03-28 | 2008-10-09 | Kao Corp | 伸縮シート |
JP2009030182A (ja) * | 2007-07-24 | 2009-02-12 | Kao Corp | 弾性フィラメント及びこれを用いた伸縮シート |
JP2009061743A (ja) * | 2007-09-07 | 2009-03-26 | Kao Corp | 伸縮シート及びその製造方法 |
WO2009075197A1 (ja) * | 2007-12-10 | 2009-06-18 | Kao Corporation | 伸縮性複合シート |
JP2009160919A (ja) * | 2007-12-10 | 2009-07-23 | Kao Corp | 伸縮性複合シート |
US8574211B2 (en) | 2007-12-10 | 2013-11-05 | Kao Corporation | Stretchable composite sheet |
JP2010005925A (ja) * | 2008-06-26 | 2010-01-14 | Kao Corp | 伸縮シート |
JP2022518334A (ja) * | 2019-03-15 | 2022-03-15 | ファイバーテクス・パーソナル・ケア・アクティーゼルスカブ | 弾性不織布シート及びその製造方法 |
JP7074933B2 (ja) | 2019-03-15 | 2022-05-24 | ファイバーテクス・パーソナル・ケア・アクティーゼルスカブ | 弾性不織布シート及びその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US6902796B2 (en) | 2005-06-07 |
EP1458562B1 (en) | 2011-02-23 |
CO5590944A2 (es) | 2005-12-30 |
CN1604844A (zh) | 2005-04-06 |
ZA200404698B (en) | 2005-08-31 |
KR100926388B1 (ko) | 2009-11-11 |
AU2002362021B2 (en) | 2007-06-28 |
WO2003057469A1 (en) | 2003-07-17 |
DE60239291D1 (de) | 2011-04-07 |
MXPA04005540A (es) | 2004-09-10 |
CN1272165C (zh) | 2006-08-30 |
AU2002362021A1 (en) | 2003-07-24 |
KR20040068228A (ko) | 2004-07-30 |
EP1458562A1 (en) | 2004-09-22 |
US20030124331A1 (en) | 2003-07-03 |
AR038070A1 (es) | 2004-12-22 |
JP4170225B2 (ja) | 2008-10-22 |
BR0214945A (pt) | 2004-12-14 |
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