ES2116512T3 - Procedimiento para la produccion de un material para filtros de aire. - Google Patents

Procedimiento para la produccion de un material para filtros de aire.

Info

Publication number
ES2116512T3
ES2116512T3 ES94118476T ES94118476T ES2116512T3 ES 2116512 T3 ES2116512 T3 ES 2116512T3 ES 94118476 T ES94118476 T ES 94118476T ES 94118476 T ES94118476 T ES 94118476T ES 2116512 T3 ES2116512 T3 ES 2116512T3
Authority
ES
Spain
Prior art keywords
fibers
filter material
procedure
production
air filters
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.)
Expired - Lifetime
Application number
ES94118476T
Other languages
English (en)
Inventor
Karl-Heinz Morweiser
Harald Dr Stini
Klaus Dr Veeser
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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 Carl Freudenberg KG filed Critical Carl Freudenberg KG
Application granted granted Critical
Publication of ES2116512T3 publication Critical patent/ES2116512T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/28Plant or installations without electricity supply, e.g. using electrets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B01D39/163Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282Addition polymers
    • D04H1/4291Olefin series
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282Addition polymers
    • D04H1/43Acrylonitrile series
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/44Non-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
    • D04H1/46Non-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
    • D04H1/48Non-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
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/44Non-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
    • D04H1/46Non-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
    • D04H1/48Non-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
    • D04H1/485Non-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 in combination with weld-bonding
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/54Non-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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5412Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres sheath-core
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/54Non-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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5414Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres side-by-side
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/54Non-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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5418Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/54Non-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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542Adhesive fibres
    • D04H1/544Olefin series
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913Rod, strand, filament or fiber
    • Y10T428/2915Rod, strand, filament or fiber including textile, cloth or fabric
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913Rod, strand, filament or fiber
    • Y10T428/2929Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913Rod, strand, filament or fiber
    • Y10T428/2929Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • Y10T428/2931Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

LA INVENCION SE REFIERE A MATERIAL DE FILTRO DE AIRE PARA LA INTERCEPCION DE POLVO, QUE SE ENCUENTRA LIBRE DE MEDIOS DE LUBRICACION Y MEDIOS ANTIESTATICOS, COMPUESTO DE UNA MEZCLA A BASE DE (I) FIBRAS DE POLIOLEFINAS Y (II) FIBRAS DE POLIACRILNITRIL. EL MATERIAL DE FILTRO ES ESTABLE DE FORMA, LAS FIBRAS (I) CORRESPONDIENTES A LA FIBRA DE DOS COMPONENTES POLIPROPILENO/POLIETILENO DEL NUCLEO/CUBIERTA O DEL TIPO LADO/LADO Y LAS FIBRAS (II) ESTAN LIBRES DE HALOGENO. EN EL PROCESO DE ELABORACION SE LAVA LA MEZCLA DE FIBRAS. SE DA A CONOCER TAMBIEN LA UTILIZACION DEL MATERIAL DE FILTRO DE AIRE.
ES94118476T 1994-03-05 1994-11-24 Procedimiento para la produccion de un material para filtros de aire. Expired - Lifetime ES2116512T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4407344A DE4407344C1 (de) 1994-03-05 1994-03-05 Luftfiltermaterial, seine Verwendung und Herstellung

Publications (1)

Publication Number Publication Date
ES2116512T3 true ES2116512T3 (es) 1998-07-16

Family

ID=6511935

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94118476T Expired - Lifetime ES2116512T3 (es) 1994-03-05 1994-11-24 Procedimiento para la produccion de un material para filtros de aire.

Country Status (10)

Country Link
US (1) US5470485A (es)
EP (1) EP0674933B1 (es)
JP (1) JP2716675B2 (es)
CN (1) CN1062190C (es)
BR (1) BR9500387A (es)
CZ (1) CZ286494B6 (es)
DE (1) DE4407344C1 (es)
ES (1) ES2116512T3 (es)
PL (1) PL178820B1 (es)
TR (1) TR28119A (es)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW438678B (en) 1996-08-09 2001-06-07 Daikin Ind Ltd Fire-retardant filter medium and air filter unit using the same
KR19980068512A (ko) * 1997-02-20 1998-10-26 손영목 난연성 필터 백(Filter Bag)과 그 제조방법
JP3512100B2 (ja) * 1997-04-11 2004-03-29 ダイキン工業株式会社 エアフィルターユニットおよびその製造方法
DE69804361T2 (de) * 1998-05-13 2002-10-10 Texel Inc., St-Elzear Reibungselektrischer luftfilter
GB9815629D0 (en) 1998-07-18 1998-09-16 Hepworth Minerals & Chemicals Filter materials and methods for the producton thereof
DE19856490B4 (de) * 1998-12-08 2006-01-12 Carl Freudenberg Kg Einrichtung zur Reinigung der Luft von Staubpartikeln, insbesondere von Pollenstaub und dergleichen
US6372004B1 (en) * 1999-07-08 2002-04-16 Airflo Europe N.V. High efficiency depth filter and methods of forming the same
JP4499852B2 (ja) * 1999-09-20 2010-07-07 阿波製紙株式会社 分離膜支持体とその製造方法
GB9924549D0 (en) 1999-10-19 1999-12-22 Hepworth Minerals & Chemicals Filter materials and methods for the production thereof
US6419729B1 (en) 2000-04-17 2002-07-16 3M Innovative Properties Company Filter assemblies with adhesive attachment systems
RU2170607C1 (ru) * 2000-05-25 2001-07-20 Филатов Юрий Николаевич Фильтрующий материал для средств защиты органов дыхания, способ получения рабочего слоя фильтрующего материала и средство защиты органов дыхания на его основе
DE10059050C2 (de) * 2000-11-28 2003-02-27 Freudenberg Carl Kg Verfahren zur Herstellung eines triboelektrisch geladenen Vliesstoffs
PT1236494E (pt) * 2001-03-02 2004-03-31 Airflo Europ N V Filtro composito e metodo para o fabricar
DE10120223B4 (de) 2001-04-24 2005-08-25 Carl Freudenberg Kg Mehrlagiger Luftfilter und dessen Verwendung
DE10235368A1 (de) * 2002-08-02 2004-02-19 Robert Bosch Gmbh Vorrichtung zum automatischen Schalten von Beleuchtungseinrichtungen, insbesondere für ein Kraftfahrzeug
AU2003300116A1 (en) * 2002-12-31 2004-07-29 Hollinee Llc Two fiber filtration material
US6808548B2 (en) * 2002-12-31 2004-10-26 Hollinee Glass Corporation Three component filtration material
US20040177758A1 (en) * 2003-03-14 2004-09-16 Tsai Peter P. Triboelectric air filter media
SE526593C2 (sv) * 2003-10-21 2005-10-11 Scandfilter Ab Luftfiltreringssystem
US7981177B2 (en) * 2007-04-18 2011-07-19 Transweb, Llc Filtration media having a slit-film layer
DE502007006501D1 (de) 2007-07-06 2011-03-31 Eurofilters Holding Nv Staubsaugerfilterbeutel
DE102008050264A1 (de) * 2008-10-07 2010-04-08 Carl Freudenberg Kg Filterelement mit abscheidungsstabilisierender Beschichtung
TWI629386B (zh) 2010-10-25 2018-07-11 里克L 查普曼 使用含策略成形纖維及/或電荷控制劑的纖維共混物的過濾材料
US10245537B2 (en) 2012-05-07 2019-04-02 3M Innovative Properties Company Molded respirator having outer cover web joined to mesh
EP2821118B1 (en) * 2013-07-02 2018-10-17 Pall Corporation Dual bag filter
CN105597934B (zh) * 2015-12-28 2017-07-04 江南大学 一种pm2.5颗粒吸附方法
CN108468156A (zh) * 2018-03-20 2018-08-31 吉林省华纺静电材料科技有限公司 利用聚丙烯静电纤维和丙烯腈纤维生产针刺静电网的工艺及其应用
CN115576288B (zh) * 2022-10-28 2023-08-08 苏州米果新材料科技有限公司 一种过滤材料的生产控制方法和系统
CN115897293A (zh) * 2022-12-13 2023-04-04 河南省科学院化学研究所有限公司 一种抗菌空气过滤材料及其制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237875A (en) * 1975-09-19 1977-03-24 Chisso Corp Manufacture of unwoven molded sheet
JPS5943171A (ja) * 1982-08-31 1984-03-10 ライオン株式会社 繊維製品処理用物品
JPS62225218A (ja) * 1986-03-25 1987-10-03 Toyobo Co Ltd 濾材の製造法
GB8612070D0 (en) * 1986-05-19 1986-06-25 Brown R C Blended-fibre filter material
JP2717805B2 (ja) * 1988-07-11 1998-02-25 チッソ株式会社 フイルターエレメントの製造方法
JP2918973B2 (ja) * 1990-04-03 1999-07-12 チッソ株式会社 換気扇用フイルター
JPH0580241A (ja) * 1991-06-21 1993-04-02 Canon Inc レンズ鏡筒
US5284704A (en) * 1992-01-15 1994-02-08 American Felt & Filter Company Non-woven textile articles comprising bicomponent fibers and method of manufacture

Also Published As

Publication number Publication date
TR28119A (tr) 1996-02-08
DE4407344C1 (de) 1995-05-11
JP2716675B2 (ja) 1998-02-18
EP0674933A2 (de) 1995-10-04
JPH07256024A (ja) 1995-10-09
BR9500387A (pt) 1995-10-24
EP0674933A3 (de) 1995-11-22
EP0674933B1 (de) 1998-04-29
CN1062190C (zh) 2001-02-21
CZ334194A3 (en) 1996-02-14
CN1112850A (zh) 1995-12-06
CZ286494B6 (en) 2000-04-12
PL307521A1 (en) 1995-09-18
US5470485A (en) 1995-11-28
PL178820B1 (pl) 2000-06-30

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