JP2010513744A - 赤外線溶媒除去方法 - Google Patents
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- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F26B3/283—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection
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- D—TEXTILES; PAPER
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
Description
比較例Aを上記のように調製したが、本発明の溶媒除去方法を受けなかった。レイダウンされたウェブの溶媒レベルは、不織ウェブの46.2重量%(462,000ppm)であった。
比較例Bは、レイダウンの後すぐに不織シートを捕集および分析するのではなく、移動する多孔性スクリーン上で不織ウェブを流体/真空溶媒除去ゾーン内に移動させた点を除いて、比較例Aのようにして調製した。不織ウェブの一方の側に真空を適用させながら、他方の側から90℃の温度の空気の溶媒除去流体を不織ウェブ上に衝突させた。真空は40mmH2Oで測定した。空気圧および真空を結合させて、溶媒除去ゾーン内にほぼ一定の大気圧をもたらした。不織ウェブを溶媒除去ゾーン内に30秒間保持した。最終溶媒レベルは不織ウェブの0.465重量%(4650ppm)であった。
実施例1は、さらに赤外線溶媒除去ゾーンを通って移動させた点を除いて、比較例Bと同様にして調製した。この追加のステップは、浮遊乾燥器を通ってウェブを移動させることにあった。乾燥器は、ウェブの上方および下方の2列の赤外線ヒーターでそれぞれが構成される3つのセクションからなる。使用した赤外線ヒーターは、GlenRoから入手可能な31.4kW、480ボルト、1相、中波長の定格のRadplane Series 80ヒーターであった。198℃の温度のホットエアをウェブの動きに逆行させてウェブの上方および下方に流した。約8秒の全残留時間に相当する18メートル/分の速度でウェブを乾燥器内に通した。オーブン内のシート温度は平均して181℃であると測定された。最終溶媒レベルは、不織ウェブの0.013重量%(130ppm)であった。
Claims (15)
- 溶液紡糸不織ウェブから化学的に結合した紡糸溶媒を除去するための方法であって、
約1マイクロメートル未満の平均繊維径を有する溶媒を含んだ高分子繊維を含む不織ウェブを提供するステップと、
赤外線放射が不織ウェブに照射されると共に溶媒除去流体が不織ウェブに衝突する溶媒除去ゾーンを通って前記不織ウェブを移動させ、繊維の溶媒濃度を約10,000ppmw未満まで低下させるステップと
を含む方法。 - 前記平均繊維径が、0.8マイクロメートル未満である請求項1に記載の方法。
- 前記平均繊維径が、0.5マイクロメートル未満である請求項2に記載の方法。
- 前記溶媒除去流体が加熱される請求項1に記載の方法。
- 前記溶媒除去流体が、約70℃と前記繊維ポリマーの融点との間の温度に加熱される請求項4に記載の方法。
- 前記溶媒除去流体が、約70℃と、繊維ポリマーの分解点との間の温度まで加熱される請求項4に記載の方法。
- 前記溶媒除去流体が、空気、窒素、アルゴン、ヘリウム、二酸化炭素、炭化水素、ハロカーボン、ハロ炭化水素、およびこれらの混合物の群から選択される請求項1に記載の方法。
- 前記溶媒除去流体が空気である請求項7に記載の方法。
- 前記溶媒濃度が、1,000ppmw未満まで低下される請求項1に記載の方法。
- 前記溶媒濃度が、300ppmw未満まで低下される請求項9に記載の方法。
- 多孔性ベルトの不織ウェブとは反対側に配置された真空源を用いて、移動する多孔性ベルトに前記不織ウェブを固定することによって、前記溶媒除去ゾーンを通って前記ウェブを移動させることと、新鮮な溶媒除去流体に、前記ウェブを通過させることとをさらに含む請求項1に記載の方法。
- 前記不織ウェブが、スクリムの上部で溶媒除去ゾーンを通って移動される請求項1に記載の方法。
- 少なくとも1つの追加の溶媒除去ゾーンを通って前記不織ウェブを移動させることをさらに含む請求項1に記載の方法。
- 前記少なくとも1つの追加の溶媒除去ゾーンにおいて、少なくとも約70℃に加熱された溶媒除去流体が前記不織ウェブに衝突する請求項13に記載の方法。
- 前記不織ウェブが、赤外線放射を含む溶媒除去ゾーンの前に、前記少なくとも1つの追加の溶媒除去ゾーンを通って移動される請求項14に記載の方法。
Applications Claiming Priority (3)
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US11/640,625 | 2006-12-18 | ||
US11/640,625 US7592415B2 (en) | 2006-12-18 | 2006-12-18 | Infrared solvent stripping process |
PCT/US2007/025739 WO2008076412A1 (en) | 2006-12-18 | 2007-12-17 | Infrared solvent stripping process |
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JP2010513744A true JP2010513744A (ja) | 2010-04-30 |
JP2010513744A5 JP2010513744A5 (ja) | 2011-02-17 |
JP5500991B2 JP5500991B2 (ja) | 2014-05-21 |
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JP2009542832A Active JP5500991B2 (ja) | 2006-12-18 | 2007-12-17 | 赤外線溶媒除去方法 |
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US (1) | US7592415B2 (ja) |
EP (1) | EP2095049B1 (ja) |
JP (1) | JP5500991B2 (ja) |
KR (1) | KR20090092329A (ja) |
CN (1) | CN101563576B (ja) |
AT (1) | ATE500479T1 (ja) |
BR (1) | BRPI0719414A8 (ja) |
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WO (1) | WO2008076412A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2012014501A1 (ja) * | 2010-07-29 | 2012-02-02 | 三井化学株式会社 | 繊維不織布、およびその製造方法と製造装置 |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20080113575A1 (en) * | 2006-11-09 | 2008-05-15 | Davis Michael C | Solvent stripping process |
US20080142737A1 (en) * | 2006-12-18 | 2008-06-19 | Joseph Brian Hovanec | Microwave solvent stripping process |
CN101809397B (zh) * | 2007-07-11 | 2013-11-13 | 纳幕尔杜邦公司 | 红外溶剂反萃取法 |
US8608998B2 (en) * | 2008-07-09 | 2013-12-17 | E I Du Pont De Nemours And Company | Infrared solvent stripping process |
US8465691B1 (en) * | 2010-05-26 | 2013-06-18 | The Boeing Company | Method for manufacturing indium tin oxide nanowires |
JP5815230B2 (ja) * | 2010-12-06 | 2015-11-17 | トップテック・カンパニー・リミテッドTOPTEC Co., Ltd. | ナノ繊維製造装置 |
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WO2012014501A1 (ja) * | 2010-07-29 | 2012-02-02 | 三井化学株式会社 | 繊維不織布、およびその製造方法と製造装置 |
JPWO2012014501A1 (ja) * | 2010-07-29 | 2013-09-12 | 三井化学株式会社 | 繊維不織布、およびその製造方法と製造装置 |
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EP2095049B1 (en) | 2011-03-02 |
KR20090092329A (ko) | 2009-08-31 |
WO2008076412A1 (en) | 2008-06-26 |
CN101563576A (zh) | 2009-10-21 |
US7592415B2 (en) | 2009-09-22 |
EP2095049A1 (en) | 2009-09-02 |
BRPI0719414A2 (pt) | 2014-02-11 |
ATE500479T1 (de) | 2011-03-15 |
BRPI0719414A8 (pt) | 2017-03-07 |
DE602007012933D1 (de) | 2011-04-14 |
CN101563576B (zh) | 2012-05-30 |
US20080146698A1 (en) | 2008-06-19 |
JP5500991B2 (ja) | 2014-05-21 |
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