EP2174084B1 - Processus de décapage de solvant infrarouge - Google Patents

Processus de décapage de solvant infrarouge Download PDF

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Publication number
EP2174084B1
EP2174084B1 EP08781650.0A EP08781650A EP2174084B1 EP 2174084 B1 EP2174084 B1 EP 2174084B1 EP 08781650 A EP08781650 A EP 08781650A EP 2174084 B1 EP2174084 B1 EP 2174084B1
Authority
EP
European Patent Office
Prior art keywords
solvent
web
nonwoven web
infrared
solvent stripping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP08781650.0A
Other languages
German (de)
English (en)
Other versions
EP2174084A1 (fr
Inventor
Christel Berta Laxton
B. Lynne Wiseman
Christopher William Newton
Simon Frisk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of EP2174084A1 publication Critical patent/EP2174084A1/fr
Application granted granted Critical
Publication of EP2174084B1 publication Critical patent/EP2174084B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/24—Arrangements of devices using drying processes not involving heating
    • F26B13/30—Arrangements of devices using drying processes not involving heating for applying suction

Claims (6)

  1. Procédé pour l'épuration d'un solvant de filage chimiquement lié d'un voile non tissé filé en solution comprenant les étapes de :
    fourniture d'un voile non tissé comprenant des fibres polymères chargées de solvant ayant des diamètres moyens de fibre inférieurs à 1 micromètre, et
    transport du voile non tissé à travers au moins une station infrarouge d'épuration de solvant dans laquelle le rayonnement infrarouge irradie le voile non tissé en l'absence de fluide d'épuration de solvant affectant le voile non tissé afin de réduire la concentration en solvant des fibres jusqu'à moins de 1000 ppmw.
  2. Procédé selon la revendication 1, dans lequel le diamètre moyen des fibres est inférieur à 0,8 micromètre.
  3. Procédé selon la revendication 2, dans lequel le diamètre moyen des fibres est inférieur à 0,5 micromètre.
  4. Procédé selon la revendication 1, dans lequel la concentration du solvant est réduite jusqu'à moins de 300 ppmw.
  5. Procédé selon la revendication 1, dans lequel le voile non tissé est transporté à travers la station d'épuration de solvant au dessus d'un renfort tissé.
  6. Procédé selon la revendication 1, comprenant en outre le transport du voile non tissé à travers au moins un fluide/une station d'épuration de solvant sous vide avant ou après la au moins une station infrarouge d'épuration de solvant.
EP08781650.0A 2007-07-11 2008-07-11 Processus de décapage de solvant infrarouge Active EP2174084B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US95904507P 2007-07-11 2007-07-11
PCT/US2008/069717 WO2009009707A1 (fr) 2007-07-11 2008-07-11 Processus de décapage de solvant infrarouge

Publications (2)

Publication Number Publication Date
EP2174084A1 EP2174084A1 (fr) 2010-04-14
EP2174084B1 true EP2174084B1 (fr) 2014-03-19

Family

ID=39864964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08781650.0A Active EP2174084B1 (fr) 2007-07-11 2008-07-11 Processus de décapage de solvant infrarouge

Country Status (5)

Country Link
EP (1) EP2174084B1 (fr)
JP (1) JP5377479B2 (fr)
KR (1) KR20100047257A (fr)
CN (1) CN101809397B (fr)
WO (1) WO2009009707A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107300315A (zh) * 2017-04-30 2017-10-27 田东昊润新材料科技有限公司 一种链排式恒温烘干机组
CN107604536B (zh) * 2017-09-12 2020-08-25 曾林涛 一种蓬松弹性三维微纳米纤维材料的制备方法、装置以及由该方法制备的纤维材料及其应用
CN114892288B (zh) * 2022-04-28 2023-02-28 上海迅江科技有限公司 一种增强型闪蒸/静电纺复合纺丝设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61231255A (ja) * 1985-04-01 1986-10-15 東燃料株式会社 プルラン綿状体
JPS61231210A (ja) * 1985-04-01 1986-10-15 Toa Nenryo Kogyo Kk 水溶性樹脂綿状体の製造方法
US4798007A (en) * 1987-05-28 1989-01-17 Eichenlaub John E Explosion-proof, pollution-free infrared dryer
US5837372A (en) * 1996-05-06 1998-11-17 The Dow Chemical Company Pliable tackified fiber tow and method of producing same
US6049995A (en) * 1999-04-20 2000-04-18 Megtec Systems, Inc. Infrared dryer with air purge shutter
KR100549140B1 (ko) * 2002-03-26 2006-02-03 이 아이 듀폰 디 네모아 앤드 캄파니 일렉트로-브로운 방사법에 의한 초극세 나노섬유 웹제조방법
US8129297B2 (en) * 2002-07-29 2012-03-06 E. I. Du Pont De Nemours And Company Method and apparatus for heating nonwoven webs
RU2005131013A (ru) * 2003-03-07 2006-03-20 Филип Моррис Продактс С.А. (Ch) Способ электростатической обработки полимерных композиций и устройство для его осуществления
US20050056956A1 (en) * 2003-09-16 2005-03-17 Biax Fiberfilm Corporation Process for forming micro-fiber cellulosic nonwoven webs from a cellulose solution by melt blown technology and the products made thereby
WO2005085730A2 (fr) * 2004-03-02 2005-09-15 Nv Bekaert Sa Installation de sechage infrarouge d'une bande en mouvement
EP1921183B1 (fr) * 2005-08-09 2013-01-23 Toray Industries, Inc. Fibre ininflammable, fibre de carbone, et procede de production des deux types de fibres
US20080113575A1 (en) * 2006-11-09 2008-05-15 Davis Michael C Solvent stripping process
US7592415B2 (en) * 2006-12-18 2009-09-22 E. I. Du Pont De Nemours And Company Infrared solvent stripping process

Also Published As

Publication number Publication date
EP2174084A1 (fr) 2010-04-14
KR20100047257A (ko) 2010-05-07
CN101809397A (zh) 2010-08-18
JP2010533248A (ja) 2010-10-21
JP5377479B2 (ja) 2013-12-25
WO2009009707A1 (fr) 2009-01-15
CN101809397B (zh) 2013-11-13

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