WO2001061082A8 - Flash-spinning process and solution - Google Patents

Flash-spinning process and solution

Info

Publication number
WO2001061082A8
WO2001061082A8 PCT/US2001/004382 US0104382W WO0161082A8 WO 2001061082 A8 WO2001061082 A8 WO 2001061082A8 US 0104382 W US0104382 W US 0104382W WO 0161082 A8 WO0161082 A8 WO 0161082A8
Authority
WO
WIPO (PCT)
Prior art keywords
web
flash
spin
synthetic fiber
forming polymer
Prior art date
Application number
PCT/US2001/004382
Other languages
French (fr)
Other versions
WO2001061082A1 (en
Inventor
Thomas A J Schweiger
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Priority to DE60123761T priority Critical patent/DE60123761T2/en
Priority to EP01909104A priority patent/EP1264013B1/en
Priority to JP2001559915A priority patent/JP4786851B2/en
Publication of WO2001061082A1 publication Critical patent/WO2001061082A1/en
Publication of WO2001061082A8 publication Critical patent/WO2001061082A8/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/11—Flash-spinning
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/724—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged forming webs during fibre formation, e.g. flash-spinning

Abstract

A process for flash-spinning a web (24) of plexifilamentary film-fibril strands (20) of synthetic fiber-forming polymer and laying down the web (24) to form a nonwoven batt (34) material therefrom includes the steps of generating a spin fluid consisting essentially of synthetic fiber-forming polymer and a spin agent, flash-spinning the spin fluid at a pressure greater than the autogenous pressure of the spin fluid into a spin cell (10) maintained at a lower pressure to form a web (24) of plexifilamentary film-fibril strands (20) of synthetic fiber-forming polymer, applying an electrostatic charge to the web (24) by passing the web (24) through an electric corona and laying the web (24) onto a grounded surface (32) to form a batt (34) of plexifilamentary film-fibril strands (20) suitable for consolidation into a sheet.
PCT/US2001/004382 2000-02-15 2001-02-12 Flash-spinning process and solution WO2001061082A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE60123761T DE60123761T2 (en) 2000-02-15 2001-02-12 PROCESS AND SOLUTION FOR FLASH SPINNING
EP01909104A EP1264013B1 (en) 2000-02-15 2001-02-12 Flash-spinning process and solution
JP2001559915A JP4786851B2 (en) 2000-02-15 2001-02-12 Flash spinning method and solution

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18262200P 2000-02-15 2000-02-15
US60/182,622 2000-02-15

Publications (2)

Publication Number Publication Date
WO2001061082A1 WO2001061082A1 (en) 2001-08-23
WO2001061082A8 true WO2001061082A8 (en) 2002-05-30

Family

ID=22669288

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/004382 WO2001061082A1 (en) 2000-02-15 2001-02-12 Flash-spinning process and solution

Country Status (5)

Country Link
US (1) US6638470B2 (en)
EP (1) EP1264013B1 (en)
JP (1) JP4786851B2 (en)
DE (1) DE60123761T2 (en)
WO (1) WO2001061082A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7179413B1 (en) * 1999-08-20 2007-02-20 E. I. Du Pont De Nemours And Company Flash-spinning process and solution
CN1221688C (en) * 1999-10-18 2005-10-05 纳幕尔杜邦公司 Flash-spun sheet material
US7488441B2 (en) * 2002-06-15 2009-02-10 Kimberly-Clark Worldwide, Inc. Use of a pulsating power supply for electrostatic charging of nonwovens
WO2004090206A1 (en) * 2003-04-03 2004-10-21 E.I. Dupont De Nemours And Company Rotary process for forming uniform material
DE112006003400T5 (en) * 2005-12-12 2008-10-30 Matsushita Electric Industrial Co., Ltd., Kadoma Apparatus and method for electrostatic spraying
JP6113072B2 (en) 2010-07-02 2017-04-12 ザ プロクター アンド ギャンブル カンパニー Method for manufacturing personal care article
US8883893B2 (en) 2011-04-18 2014-11-11 E I Du Pont De Nemours And Company Flame retardant flash spun sheets
US20130126418A1 (en) * 2011-05-13 2013-05-23 E. I. Du Pont De Nemours And Company Liquid filtration media
CN106413683A (en) 2014-04-22 2017-02-15 宝洁公司 Compositions in the form of dissolvable solid structures

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081519A (en) 1962-01-31 1963-03-19 Fibrillated strand
FR2274731A1 (en) 1974-03-22 1976-01-09 Toray Industries PROCESS FOR THE PRODUCTION OF MATERIALS OF THE SYNTHETIC PULP TYPE FOR PAPER, BASED ON HYDROPHOBIC AND HYDROPHILIC POLYMERS, AND NEW PRODUCTS THUS OBTAINED
US5147586A (en) * 1991-02-22 1992-09-15 E. I. Du Pont De Nemours And Company Flash-spinning polymeric plexifilaments
JPH04281007A (en) * 1991-03-07 1992-10-06 Asahi Chem Ind Co Ltd Production of fibrillated polyethylene fiber
US5643525A (en) 1993-03-26 1997-07-01 E. I. Du Pont De Nemours And Company Process for improving electrostatic charging of plexifilaments

Also Published As

Publication number Publication date
EP1264013A2 (en) 2002-12-11
US6638470B2 (en) 2003-10-28
DE60123761D1 (en) 2006-11-23
EP1264013B1 (en) 2006-10-11
US20020000686A1 (en) 2002-01-03
JP4786851B2 (en) 2011-10-05
DE60123761T2 (en) 2007-09-20
JP2003522852A (en) 2003-07-29
WO2001061082A1 (en) 2001-08-23

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