CA2435288A1 - Hydroentangled filter media and method - Google Patents
Hydroentangled filter media and method Download PDFInfo
- Publication number
- CA2435288A1 CA2435288A1 CA002435288A CA2435288A CA2435288A1 CA 2435288 A1 CA2435288 A1 CA 2435288A1 CA 002435288 A CA002435288 A CA 002435288A CA 2435288 A CA2435288 A CA 2435288A CA 2435288 A1 CA2435288 A1 CA 2435288A1
- Authority
- CA
- Canada
- Prior art keywords
- filter media
- accordance
- filter
- machine
- cross
- 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
Links
- 239000000835 fiber Substances 0.000 claims abstract 4
- 229920000728 polyester Polymers 0.000 claims abstract 3
- 238000004519 manufacturing process Methods 0.000 claims 4
- 239000002243 precursor Substances 0.000 claims 4
- 238000009998 heat setting Methods 0.000 claims 2
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- 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
- B01D39/163—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
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- 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
- D04H1/40—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
- D04H1/44—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
- D04H1/46—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
- D04H1/48—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 in combination with at least one other method of consolidation
-
- 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
- D04H1/40—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
- D04H1/44—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
- D04H1/46—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
- D04H1/48—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 in combination with at least one other method of consolidation
- D04H1/49—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 in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
-
- 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
- D04H1/40—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
- D04H1/44—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
- D04H1/46—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
- 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
- D04H1/495—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 for formation of patterns, e.g. drilling or rearrangement
-
- 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
- D04H18/00—Needling machines
- D04H18/04—Needling machines with water jets
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2904—Staple length fiber
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2915—Rod, strand, filament or fiber including textile, cloth or fabric
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
- Y10T442/184—Nonwoven scrim
- Y10T442/197—Including a nonwoven fabric which is not a scrim
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/608—Including strand or fiber material which is of specific structural definition
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/608—Including strand or fiber material which is of specific structural definition
- Y10T442/627—Strand or fiber material is specified as non-linear [e.g., crimped, coiled, etc.]
- Y10T442/632—A single nonwoven layer comprising non-linear synthetic polymeric strand or fiber material and strand or fiber material not specified as non-linear
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/608—Including strand or fiber material which is of specific structural definition
- Y10T442/627—Strand or fiber material is specified as non-linear [e.g., crimped, coiled, etc.]
- Y10T442/632—A single nonwoven layer comprising non-linear synthetic polymeric strand or fiber material and strand or fiber material not specified as non-linear
- Y10T442/633—Synthetic polymeric strand or fiber material is of staple length
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/659—Including an additional nonwoven fabric
- Y10T442/666—Mechanically interengaged by needling or impingement of fluid [e.g., gas or liquid stream, etc.]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/689—Hydroentangled nonwoven fabric
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
- Y10T442/69—Autogenously bonded nonwoven fabric
Abstract
A filter media formed in accordance with the present invention comprises hydroentangled, predominantly polyester staple length fibers having a basis weight of no more than about 12 oz/yd2. The filter media exhibits a Mullen burst strength of at least about 395 psi, and machine-direction and cross- direction shrinkage of less than about 3%, preferably less than about 2%. Th e filter media exhibits a machine-direction tensile strength of at least about 105 lb/in, and a cross direction tensile strength of at least about 110 lb/i n.
Claims (10)
1. A method of making a filter media comprising the steps of:
providing a precursor web comprising predominant staple length polyester fibers;
providing a foraminous surface, and positioning said precursor web and said foraminous surface; and hydroentangling said precursor web to form said filter media, said filter media having a basis weight of no more than about 12 oz/yd2, and exhibiting a Mullen burst strength of at least about 395 psi, and machine-direction and cross-direction shrinkage of less than about 3 %.
providing a precursor web comprising predominant staple length polyester fibers;
providing a foraminous surface, and positioning said precursor web and said foraminous surface; and hydroentangling said precursor web to form said filter media, said filter media having a basis weight of no more than about 12 oz/yd2, and exhibiting a Mullen burst strength of at least about 395 psi, and machine-direction and cross-direction shrinkage of less than about 3 %.
2. A method of making a filter media in accordance with claim 1, wherein said foraminous surface is a three-dimensional image transfer device.
3. A method of making a filter media in accordance with claim 1, including:
heat-setting said filter media after said hydroentangling step.
heat-setting said filter media after said hydroentangling step.
4. A method of making a filter media in accordance with claim 2, wherein said precursor web comprises fusible fibers whereby said filter media is thermally bonded during said heat-setting step.
5. A filter media comprising hydroentangled, predominant polyester staple length fibers having a basis weight of no more than about 12 oz/yd2, a Mullen burst strength of at least about 395 psi, and machine-direction and cross-direction shrinkage of less than about 3 %.
6. A filter media in accordance with claim 4, wherein said media exhibits machine-direction and cross-direction shrinkage of less than about 2 %.
7. A filter media in accordance with claim 4, wherein said filter media exhibits a machine-direction tensile strength of at least about 105 lb/in and a cross-direction tensile strength of at least about 110 lb/in.
8. A filter media in accordance with claim 1, wherein said filter media is a gas filter.
9. A filter media in accordance with claim1, wherein said filter media is an air filter.
10. A filter media in accordance with claim1, wherein said filter media is a liquid filter.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26222901P | 2001-01-17 | 2001-01-17 | |
US60/262,229 | 2001-01-17 | ||
PCT/US2002/001382 WO2002068081A2 (en) | 2001-01-17 | 2002-01-16 | Hydroentangled filter media and method |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2435288A1 true CA2435288A1 (en) | 2002-09-06 |
CA2435288C CA2435288C (en) | 2010-01-05 |
Family
ID=22996697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002435288A Expired - Fee Related CA2435288C (en) | 2001-01-17 | 2002-01-16 | Hydroentangled filter media and method |
Country Status (9)
Country | Link |
---|---|
US (2) | US7015158B2 (en) |
EP (1) | EP1427500B1 (en) |
AT (1) | ATE338580T1 (en) |
AU (1) | AU2002243583B2 (en) |
CA (1) | CA2435288C (en) |
DE (1) | DE60214570T2 (en) |
ES (1) | ES2271224T3 (en) |
MX (1) | MXPA03006384A (en) |
WO (1) | WO2002068081A2 (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE424991T1 (en) * | 2002-10-22 | 2009-03-15 | Polymer Group Inc | HYDROJET FILTERED FILTER MEDIA WITH IMPROVED STATIC DISSIPATION AND METHODS |
SE527725C2 (en) * | 2003-01-02 | 2006-05-23 | Karl-Gunnar Karlsson | Device for an internal combustion engine |
CA2515998A1 (en) * | 2003-02-14 | 2004-09-02 | Polymer Group, Inc. | Hydroentangled liquid filter media and method of manifacture |
US7410530B2 (en) * | 2005-03-04 | 2008-08-12 | Donaldson Company, Inc. | Apparatus for cleaning exhaust aftertreatment devices and methods |
EP2111279A2 (en) * | 2007-01-30 | 2009-10-28 | Donaldson Company, Inc. | Apparatus for cleaning exhaust aftertreatment devices and methods |
US20100037423A1 (en) * | 2008-07-10 | 2010-02-18 | Herman John T | Apparatus for Cleaning Exhaust Aftertreatment Devices and Methods |
US8328894B2 (en) | 2008-08-20 | 2012-12-11 | S.C. Johnson & Son, Inc. | Dust prevention and removal device |
JP2012512741A (en) * | 2008-12-19 | 2012-06-07 | スリーエム イノベイティブ プロパティズ カンパニー | Pre-filter for spray coating booth and method for reducing pollution |
US8021996B2 (en) * | 2008-12-23 | 2011-09-20 | Kimberly-Clark Worldwide, Inc. | Nonwoven web and filter media containing partially split multicomponent fibers |
WO2010109273A1 (en) * | 2009-03-27 | 2010-09-30 | Csir | Process for producing a nonwoven air filter medium |
KR101950256B1 (en) * | 2012-02-23 | 2019-02-20 | 도레이 카부시키가이샤 | Separation membrane support, method for manufacturing same, separation membrane using separation membrane support, and fluid separation device |
FR2989903B1 (en) * | 2012-04-27 | 2015-02-27 | Total Raffinage Marketing | GAS FILTER DEVICE HAVING FASTENING MEANS AND REMOVAL OF FILTER ELEMENTS FOR MAINTENANCE |
CA2832794C (en) * | 2012-11-07 | 2016-03-22 | 2266170 Ontario Inc. | Beverage capsule with moldable filter |
JP6190043B2 (en) | 2013-05-09 | 2017-08-30 | ザ プロクター アンド ギャンブル カンパニー | Foldable air filtering device |
KR102254682B1 (en) | 2013-05-09 | 2021-05-21 | 더 프록터 앤드 갬블 캄파니 | Methods of filtering air |
WO2014182987A2 (en) | 2013-05-09 | 2014-11-13 | The Procter & Gamble Company | Air filtering device |
US9579597B2 (en) | 2013-05-09 | 2017-02-28 | The Procter & Gamble Company | Air filtering device |
US9962642B2 (en) * | 2014-06-10 | 2018-05-08 | The Procter & Gamble Company | Air filter bag |
US20190076768A1 (en) | 2017-09-08 | 2019-03-14 | Welspun India Limited | Multi-layer composite filter media and method of making same |
US11839845B2 (en) | 2018-08-03 | 2023-12-12 | 3M Innovative Properties Company | Air-filter media comprising a relofted spunbonded web, and methods of making and using |
CN111035994B (en) * | 2019-12-23 | 2022-03-22 | 东营俊富净化科技有限公司 | Preparation method of low-resistance filter material |
Family Cites Families (25)
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US455601A (en) * | 1891-07-07 | Separator for coal or other substances | ||
US491383A (en) * | 1893-02-07 | Fastening for furniture | ||
US3485706A (en) | 1968-01-18 | 1969-12-23 | Du Pont | Textile-like patterned nonwoven fabrics and their production |
US4190695A (en) * | 1978-11-30 | 1980-02-26 | E. I. Du Pont De Nemours And Company | Hydraulically needling fabric of continuous filament textile and staple fibers |
US4556601A (en) * | 1984-01-05 | 1985-12-03 | E. I. Du Pont De Nemours And Company | Heavy-weight nonwoven fabric of hydraulically-entangled fibers |
US4612237A (en) | 1985-12-13 | 1986-09-16 | E. I. Du Pont De Nemours And Company | Hydraulically entangled PTFE/glass filter felt |
US4931355A (en) | 1988-03-18 | 1990-06-05 | Radwanski Fred R | Nonwoven fibrous hydraulically entangled non-elastic coform material and method of formation thereof |
US5028465A (en) * | 1989-03-20 | 1991-07-02 | James River Corporation | Hydroentangled composite filter element |
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US5098764A (en) * | 1990-03-12 | 1992-03-24 | Chicopee | Non-woven fabric and method and apparatus for making the same |
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US5456836A (en) * | 1992-09-25 | 1995-10-10 | Albany International Corp. | High-efficiency, self-supporting filter element made from fibers |
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DE69417041T2 (en) * | 1993-08-17 | 1999-07-15 | Minnesota Mining & Mfg | METHOD FOR CHARGING ELECTRIC FILTER MEDIA |
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US6169045B1 (en) * | 1993-11-16 | 2001-01-02 | Kimberly-Clark Worldwide, Inc. | Nonwoven filter media |
JP2000516304A (en) * | 1994-11-02 | 2000-12-05 | ザ、プロクター、エンド、ギャンブル、カンパニー | Non-woven fabric manufacturing method |
US5822823A (en) | 1995-08-11 | 1998-10-20 | Newell Operating Company | Apparatus and method for applying coatings to planar and non-planar surfaces |
DE19537702A1 (en) * | 1995-10-11 | 1997-04-17 | Hoechst Trevira Gmbh & Co Kg | Fabrics and scrims with adjustable gas and / or liquid tightness containing hybrid yarns, processes for their further processing, textile fabrics with predetermined gas and / or liquid permeability and their use |
US6321425B1 (en) * | 1999-12-30 | 2001-11-27 | Polymer Group Inc. | Hydroentangled, low basis weight nonwoven fabric and process for making same |
US6381817B1 (en) * | 2001-03-23 | 2002-05-07 | Polymer Group, Inc. | Composite nonwoven fabric |
-
2002
- 2002-01-16 EP EP02709078A patent/EP1427500B1/en not_active Revoked
- 2002-01-16 AT AT02709078T patent/ATE338580T1/en not_active IP Right Cessation
- 2002-01-16 AU AU2002243583A patent/AU2002243583B2/en not_active Ceased
- 2002-01-16 CA CA002435288A patent/CA2435288C/en not_active Expired - Fee Related
- 2002-01-16 ES ES02709078T patent/ES2271224T3/en not_active Expired - Lifetime
- 2002-01-16 MX MXPA03006384A patent/MXPA03006384A/en active IP Right Grant
- 2002-01-16 US US10/050,413 patent/US7015158B2/en not_active Expired - Lifetime
- 2002-01-16 DE DE60214570T patent/DE60214570T2/en not_active Expired - Fee Related
- 2002-01-16 WO PCT/US2002/001382 patent/WO2002068081A2/en active IP Right Grant
-
2006
- 2006-01-09 US US11/328,305 patent/US7381669B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2435288C (en) | 2010-01-05 |
US20020187703A1 (en) | 2002-12-12 |
MXPA03006384A (en) | 2004-12-02 |
EP1427500A4 (en) | 2004-06-16 |
DE60214570D1 (en) | 2006-10-19 |
ES2271224T3 (en) | 2007-04-16 |
EP1427500B1 (en) | 2006-09-06 |
WO2002068081A3 (en) | 2003-10-16 |
US7015158B2 (en) | 2006-03-21 |
ATE338580T1 (en) | 2006-09-15 |
DE60214570T2 (en) | 2007-09-06 |
EP1427500A2 (en) | 2004-06-16 |
US7381669B2 (en) | 2008-06-03 |
US20060111004A1 (en) | 2006-05-25 |
AU2002243583B2 (en) | 2006-10-05 |
WO2002068081A2 (en) | 2002-09-06 |
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