JPH09501604A - エレクトレット濾過材の荷電方法 - Google Patents
エレクトレット濾過材の荷電方法Info
- Publication number
- JPH09501604A JPH09501604A JP7507157A JP50715795A JPH09501604A JP H09501604 A JPH09501604 A JP H09501604A JP 7507157 A JP7507157 A JP 7507157A JP 50715795 A JP50715795 A JP 50715795A JP H09501604 A JPH09501604 A JP H09501604A
- Authority
- JP
- Japan
- Prior art keywords
- web
- water
- charge
- jet
- filter
- 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.)
- Granted
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/01—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof
- D06M11/05—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof with water, e.g. steam; with heavy water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
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- D04H1/407—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties containing absorbing substances, e.g. activated carbon
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- D—TEXTILES; PAPER
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
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- D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
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- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
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- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
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- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. by ultrasonic waves, corona discharge, irradiation, electric currents or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Sonic or ultrasonic waves; Corona discharge
- D06M10/025—Corona discharge or low temperature plasma
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
- A62B23/025—Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
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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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- 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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- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/608—Including strand or fiber material which is of specific structural definition
- Y10T442/614—Strand or fiber material specified as having microdimensions [i.e., microfiber]
- Y10T442/626—Microfiber is synthetic polymer
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Filtering Materials (AREA)
- Nonwoven Fabrics (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Electrostatic Separation (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.多量の捕捉電荷を有し得る熱可塑性非導電性微小繊維の不織ウェブ上に、 水の噴流または水滴流を、濾過向上性エレクトレット電荷をウェブに提供するの に十分な圧力で、衝突させる工程および該ウェブを乾燥する工程から成る、エレ クトレット濾過材を提供するための熱可塑性微小繊維の不織ウェブの荷電方法。 2.該水の噴流がハイドロエンタングル(hydroentangle)装置により提供され る請求項1記載の方法。 3.該水滴流が噴霧器によって提供される請求項1記載の方法。 4.該水の噴流または水滴流が圧力約69〜3450kPaで提供される請求項1記載 の方法。 5.該ウェブに、該水の噴流または該水滴流の衝突の前に、コロナ放電処理を 行う請求項1記載の方法。 6.該ウェブが更にステープルファイバーを含有する請求項1記載の方法。 7.該ステープルファイバーが該ウェブの90重量%以下を構成する請求項6記 載の方法。 8.該ウェブが基本重量約5〜500g/m2を有する請求項1記載の方法。 9.該ウェブが厚さ約0.25〜20mmを有する請求項1記載の方法。 10.該微小繊維が有効繊維直径約3〜30μmを有する請求項1記載の方法。 11.該微小繊維がポリプロピレン、ポリ(4-メチル-1-ペンテン)またはそれら の混合物である請求項1記載の方法。 12.該微小繊維がポリプロピレンおよびポリ(4-メチル-1-ペンテン)を含有す る請求項1記載の方法。 13.ポリプロピレンおよびポリ(4-メチル-1-ペンテン)が該微小繊維中で層を 成す請求項12記載の方法。 14.捕捉電荷を有する熱可塑性非導電性微小繊維の不織ウェブを含有するエレ クトレット濾過材であって、該電荷が(1)水の噴流または水滴流を、濾過向上性 エレクトレット電荷をウェブに提供するのに十分な圧力で、そのウェブ上に衝突 させる工程および(2)上記ウェブを乾燥する工程によって提供されるエレクトレ ット濾過材。 15.捕捉電荷を有する熱可塑性非導電性微小繊維の不織ウェブを含有するマス ク着用者の鼻および口を覆うのに用いられる弾性カップ型濾過フェースマスクで あって、該電荷が(1)水の噴流または水滴流を、濾過向上性エレクトレット電荷 をウェブに提供するのに十分な圧力で、そのウェブ上に衝突させる工程および(2 )上記ウェブを乾燥する工程によって提供される弾性カップ型濾過フェースマス ク。 16.少なくとも1つの吸入口、吸入バルブ、および吸入フィルターおよび少な くとも1つの呼息口および呼息バルブから成るフェースピース;上記フェースピ ースにより保持されたフェースシール;および上記フェースピースを着用者頭部 に保持するためのハーネス;を含む呼吸マスクアセンブリであって、該吸入フィ ルターが捕捉電荷を有する熱可塑性非導電性微小繊維の不織ウェブを含有し、該 電荷が(1)水の噴流または水滴流を、濾過向上性エレクトレット電荷をウェブに 提供するのに十分な圧力で、そのウェブ上に衝突させる工程および(2)上記ウェ ブを乾燥する工程によって提供される呼吸マスクアセンブリ。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10751793A | 1993-08-17 | 1993-08-17 | |
| US08/107,517 | 1993-08-17 | ||
| PCT/US1994/009275 WO1995005501A2 (en) | 1993-08-17 | 1994-08-17 | Method of charging electret filter media |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003191177A Division JP3735687B2 (ja) | 1993-08-17 | 2003-07-03 | エレクトレット濾過材の荷電方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09501604A true JPH09501604A (ja) | 1997-02-18 |
| JP3476084B2 JP3476084B2 (ja) | 2003-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50715795A Expired - Fee Related JP3476084B2 (ja) | 1993-08-17 | 1994-08-17 | エレクトレット濾過材の荷電方法 |
| JP2003191177A Expired - Fee Related JP3735687B2 (ja) | 1993-08-17 | 2003-07-03 | エレクトレット濾過材の荷電方法 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003191177A Expired - Fee Related JP3735687B2 (ja) | 1993-08-17 | 2003-07-03 | エレクトレット濾過材の荷電方法 |
Country Status (13)
| Country | Link |
|---|---|
| US (3) | US5496507A (ja) |
| EP (2) | EP0714463B1 (ja) |
| JP (2) | JP3476084B2 (ja) |
| KR (1) | KR100336012B1 (ja) |
| CN (1) | CN1052042C (ja) |
| AU (1) | AU680561B2 (ja) |
| BR (1) | BR9407259A (ja) |
| CA (1) | CA2168126C (ja) |
| DE (2) | DE69435251D1 (ja) |
| ES (2) | ES2336163T3 (ja) |
| PL (1) | PL173854B1 (ja) |
| RU (1) | RU2130521C1 (ja) |
| WO (1) | WO1995005501A2 (ja) |
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| JP2004195357A (ja) * | 2002-12-18 | 2004-07-15 | Toyobo Co Ltd | エレクトレット濾材の製造方法 |
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| KR20140108216A (ko) | 2011-12-16 | 2014-09-05 | 도레이 카부시키가이샤 | 혼섬 부직포, 적층 시트, 필터, 및 혼섬 부직포의 제조 방법 |
| US9266046B2 (en) | 2011-12-16 | 2016-02-23 | Toray Industries, Inc. | Mixed-fiber nonwoven fabric, laminated sheet and filter, and process for producing mixed-fiber nonwoven fabric |
| WO2014168066A1 (ja) | 2013-04-11 | 2014-10-16 | 東レ株式会社 | 混繊不織布およびその製造方法 |
| KR20150140655A (ko) | 2013-04-11 | 2015-12-16 | 도레이 카부시키가이샤 | 혼섬 부직포 및 그 제조 방법 |
| JPWO2016147866A1 (ja) * | 2015-03-16 | 2018-02-08 | 東レ株式会社 | エレクトレット繊維シート |
| WO2017110299A1 (ja) * | 2015-12-22 | 2017-06-29 | 東レ株式会社 | エレクトレット繊維シート |
| JPWO2017110299A1 (ja) * | 2015-12-22 | 2018-10-11 | 東レ株式会社 | エレクトレット繊維シート |
| EP3396058A4 (en) * | 2015-12-22 | 2019-08-28 | Toray Industries, Inc. | ELEKTRETFASERFOLIE |
| US10512861B2 (en) | 2015-12-22 | 2019-12-24 | Toray Industries, Inc. | Electret fiber sheet |
| WO2022075381A1 (ja) | 2020-10-07 | 2022-04-14 | 三井化学株式会社 | 繊維不織布、フィルタ及び繊維不織布の製造方法 |
| JP7416330B1 (ja) * | 2022-03-03 | 2024-01-17 | 東レ株式会社 | エレクトレットメルトブロー不織布、および、これを用いてなるエアフィルター濾材 |
| JP2024072012A (ja) * | 2022-11-15 | 2024-05-27 | トヨタ紡織株式会社 | 帯電装置 |
| WO2024116767A1 (ja) | 2022-11-30 | 2024-06-06 | 東レ株式会社 | スパンボンド不織布、フィルター濾材、エアフィルター、ならびに、フィルター濾材の製造装置 |
| EP4628640A1 (en) | 2022-11-30 | 2025-10-08 | Toray Industries, Inc. | Spunbond nonwoven fabric, filter material, air filter, and method for producing filter material |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0714463B1 (en) | 1999-03-10 |
| RU2130521C1 (ru) | 1999-05-20 |
| DE69417041D1 (de) | 1999-04-15 |
| JP3476084B2 (ja) | 2003-12-10 |
| DE69435251D1 (de) | 2009-12-31 |
| KR100336012B1 (ko) | 2002-10-11 |
| CA2168126C (en) | 2005-07-12 |
| BR9407259A (pt) | 1996-09-24 |
| US6783574B1 (en) | 2004-08-31 |
| WO1995005501A2 (en) | 1995-02-23 |
| EP0845554A3 (en) | 2000-09-27 |
| JP2004074149A (ja) | 2004-03-11 |
| ES2128590T3 (es) | 1999-05-16 |
| US5496507A (en) | 1996-03-05 |
| AU680561B2 (en) | 1997-07-31 |
| EP0714463A1 (en) | 1996-06-05 |
| EP0845554A2 (en) | 1998-06-03 |
| JP3735687B2 (ja) | 2006-01-18 |
| WO1995005501A3 (en) | 1995-03-23 |
| US6119691A (en) | 2000-09-19 |
| AU7953294A (en) | 1995-03-14 |
| PL312993A1 (en) | 1996-05-27 |
| ES2336163T3 (es) | 2010-04-08 |
| PL173854B1 (pl) | 1998-05-29 |
| CN1129963A (zh) | 1996-08-28 |
| CN1052042C (zh) | 2000-05-03 |
| EP0845554B1 (en) | 2009-11-18 |
| CA2168126A1 (en) | 1995-02-23 |
| DE69417041T2 (de) | 1999-07-15 |
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