ES2175185T3 - Telas para mascarillas respiratorias de alto rendimiento. - Google Patents

Telas para mascarillas respiratorias de alto rendimiento.

Info

Publication number
ES2175185T3
ES2175185T3 ES96945601T ES96945601T ES2175185T3 ES 2175185 T3 ES2175185 T3 ES 2175185T3 ES 96945601 T ES96945601 T ES 96945601T ES 96945601 T ES96945601 T ES 96945601T ES 2175185 T3 ES2175185 T3 ES 2175185T3
Authority
ES
Spain
Prior art keywords
around
fibers
fabrics
high performance
network
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
ES96945601T
Other languages
English (en)
Inventor
Irwin Jerold Singer
Richard Daniel Pike
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.)
Kimberly Clark Worldwide Inc
Kimberly Clark Corp
Original Assignee
Kimberly Clark Worldwide Inc
Kimberly Clark Corp
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 Kimberly Clark Worldwide Inc, Kimberly Clark Corp filed Critical Kimberly Clark Worldwide Inc
Application granted granted Critical
Publication of ES2175185T3 publication Critical patent/ES2175185T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/016Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • 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
    • 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
    • D04H1/4326Condensation or reaction polymers
    • D04H1/4334Polyamides
    • 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
    • D04H1/4382Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825Composite fibres
    • D04H1/43828Composite 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
    • D04H1/42Non-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
    • D04H1/4382Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825Composite fibres
    • D04H1/43832Composite 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
    • D04H1/42Non-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
    • D04H1/4382Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43838Ultrafine fibres, e.g. microfibres
    • 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
    • D04H1/555Non-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 by ultrasonic heating
    • 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
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005Synthetic yarns or filaments
    • D04H3/007Addition polymers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/0216Bicomponent or multicomponent fibres
    • B01D2239/0225Side-by-side
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/0216Bicomponent or multicomponent fibres
    • B01D2239/0233Island-in-sea
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0414Surface modifiers, e.g. comprising ion exchange groups
    • B01D2239/0421Rendering the filter material hydrophilic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0435Electret
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604Arrangement of the fibres in the filtering material
    • B01D2239/0622Melt-blown
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604Arrangement of the fibres in the filtering material
    • B01D2239/0627Spun-bonded
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065More than one layer present in the filtering material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/069Special geometry of layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1233Fibre diameter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1291Other parameters
    • 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
    • D04H1/4382Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825Composite fibres
    • D04H1/4383Composite fibres sea-island
    • 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
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/903Microfiber, less than 100 micron diameter
    • 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
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608Including strand or fiber material which is of specific structural definition
    • Y10T442/614Strand or fiber material specified as having microdimensions [i.e., microfiber]
    • Y10T442/62Including another chemically different microfiber in a separate layer
    • 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
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608Including strand or fiber material which is of specific structural definition
    • Y10T442/614Strand or fiber material specified as having microdimensions [i.e., microfiber]
    • Y10T442/626Microfiber is synthetic polymer
    • 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
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/637Including strand or fiber material which is a monofilament composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
    • 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
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    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/637Including strand or fiber material which is a monofilament composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
    • Y10T442/638Side-by-side multicomponent strand or fiber material
    • 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
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    • Y10T442/641Sheath-core multicomponent strand or fiber material
    • 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
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    • Y10T442/647Including a foamed layer or component
    • Y10T442/651Plural fabric layers
    • 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
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    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659Including an additional nonwoven fabric
    • Y10T442/66Additional nonwoven fabric is a spun-bonded 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
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/696Including strand or fiber material which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, etc.]

Abstract

SE PROPORCIONA UN TELA PARA MASCARA RESPIRATORIA QUE TIENE ENTRE 50 Y 95 % EN PESO DE UNA PRIMERA RED DE FIBRAS DE MICROFIBRA NO TEJIDA, UNIDA A TRAVES DEL AIRE Y TRATADA CON ELECTRET, CUYAS FIBRAS TIENEN UN DIAMETRO PROMEDIO DE ENTRE ALREDEDOR DE 10 Y 25 MICRAS Y EN QUE LA PRIMERA RED TIENE UNA PERMEABILIDAD DE FRAZIER POR ENCIMA DE 100 CFM/SF, UNA DENSIDAD DE ENTRE ALREDEDOR DE 0,015 Y 0,15 GMS/CC, Y UN PESO BASICO ENTRE ALREDEDOR DE 67 GSM Y ALREDEDOR DE 340 GSM, Y ENTRE ALREDEDOR DEL 5 Y EL 50 % EN PESO DE UNA SEGUNDA RED DE FIBRAS DE MICROFIBRAS TRATADAS CON ELECTRET EN QUE LAS FIBRAS TIENEN UN DIAMETRO PROMEDIO DE MENOS DE ALREDEDOR DE 10 MICRAS.
ES96945601T 1995-12-22 1996-12-11 Telas para mascarillas respiratorias de alto rendimiento. Expired - Lifetime ES2175185T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/577,370 US5817584A (en) 1995-12-22 1995-12-22 High efficiency breathing mask fabrics

Publications (1)

Publication Number Publication Date
ES2175185T3 true ES2175185T3 (es) 2002-11-16

Family

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Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6169045B1 (en) * 1993-11-16 2001-01-02 Kimberly-Clark Worldwide, Inc. Nonwoven filter media
US6171684B1 (en) * 1995-11-17 2001-01-09 Donaldson Company, Inc. Filter material construction and method
US20040097158A1 (en) * 1996-06-07 2004-05-20 Rudisill Edgar N. Nonwoven fibrous sheet structures
DE69738870D1 (de) * 1996-09-06 2008-09-11 Chisso Corp Verbundbahn aus vliesstoff und zugehöriges verfahren zum herstellen
US6537932B1 (en) 1997-10-31 2003-03-25 Kimberly-Clark Worldwide, Inc. Sterilization wrap, applications therefor, and method of sterilizing
US6365088B1 (en) 1998-06-26 2002-04-02 Kimberly-Clark Worldwide, Inc. Electret treatment of high loft and low density nonwoven webs
US6759356B1 (en) * 1998-06-30 2004-07-06 Kimberly-Clark Worldwide, Inc. Fibrous electret polymeric articles
BR9911631B1 (pt) 1998-06-30 2009-12-01 material de eletreto.
US6454989B1 (en) 1998-11-12 2002-09-24 Kimberly-Clark Worldwide, Inc. Process of making a crimped multicomponent fiber web
US6723669B1 (en) 1999-12-17 2004-04-20 Kimberly-Clark Worldwide, Inc. Fine multicomponent fiber webs and laminates thereof
AR024848A1 (es) * 1998-12-19 2002-10-30 Kimberly Clark Co Tejido de fibras finas de multicomponentes y los laminados de los mismos.
EP1222012A2 (de) * 1999-08-06 2002-07-17 MHB Filtration GmbH & CO. KG Filtermaterial zum abtrennen von festen, partikulären und gasförmigen bestandteilen aus fluiden
US6627563B1 (en) * 1999-08-19 2003-09-30 3M Innovative Properties Company Oily-mist resistant filter that has nondecreasing efficiency
ITMI990561U1 (it) * 1999-09-09 2001-03-09 Emilio Mina Struttura di accappatoio confezionato con un tessuto non tessuto realizzato in microfibra
US6613704B1 (en) * 1999-10-13 2003-09-02 Kimberly-Clark Worldwide, Inc. Continuous filament composite nonwoven webs
US6777056B1 (en) 1999-10-13 2004-08-17 Kimberly-Clark Worldwide, Inc. Regionally distinct nonwoven webs
CN1270013C (zh) 1999-12-21 2006-08-16 金伯利-克拉克环球有限公司 热塑性聚合物织物及其制法
GB0005037D0 (en) 2000-03-03 2000-04-26 Secr Defence Combined vapour and particulate filter
US6815383B1 (en) 2000-05-24 2004-11-09 Kimberly-Clark Worldwide, Inc. Filtration medium with enhanced particle holding characteristics
US6513184B1 (en) 2000-06-28 2003-02-04 S. C. Johnson & Son, Inc. Particle entrapment system
US6649547B1 (en) 2000-08-31 2003-11-18 Kimberly-Clark Worldwide, Inc. Integrated nonwoven laminate material
US7785699B1 (en) * 2000-09-06 2010-08-31 Ward Calvin B Electrostatically charged porous water-impermeable absorbent laminate for protecting work surfaces from contamination
WO2002041717A2 (en) * 2000-11-27 2002-05-30 Kimberly-Clark Worldwide, Inc. Face mask filtration media with improved breathability
US6936554B1 (en) 2000-11-28 2005-08-30 Kimberly-Clark Worldwide, Inc. Nonwoven fabric laminate with meltblown web having a gradient fiber size structure
US6550639B2 (en) 2000-12-05 2003-04-22 S.C. Johnson & Son, Inc. Triboelectric system
US20030013371A1 (en) * 2001-04-20 2003-01-16 Polymer Group, Inc. Process for forming soft, drapeable nonwoven fabric
US20030054125A1 (en) * 2001-09-12 2003-03-20 Kimberly-Clark Worldwide, Inc. Protective electret treated nonwoven web for sensitive surfaces
US20030203695A1 (en) * 2002-04-30 2003-10-30 Polanco Braulio Arturo Splittable multicomponent fiber and fabrics therefrom
US6827764B2 (en) * 2002-07-25 2004-12-07 3M Innovative Properties Company Molded filter element that contains thermally bonded staple fibers and electrically-charged microfibers
US20040078860A1 (en) * 2002-10-25 2004-04-29 Bell Daryl Steven Single piece face mask
US6928657B2 (en) * 2002-10-25 2005-08-16 Kimberly-Clark Worldwide, Inc. Face mask having hook and loop type fastener
US20040116025A1 (en) * 2002-12-17 2004-06-17 Gogins Mark A. Air permeable garment and fabric with integral aerosol filtration
US7032751B2 (en) * 2002-12-19 2006-04-25 Kimberly-Clark Worldwide, Inc. Dispensing assembly for single piece face mask
US7294175B2 (en) * 2004-01-13 2007-11-13 Huang Jong T Personal inhalation filter
US20060135020A1 (en) * 2004-12-17 2006-06-22 Weinberg Mark G Flash spun web containing sub-micron filaments and process for forming same
US7325699B2 (en) 2004-12-17 2008-02-05 Kimberly-Clark Worldwide, Inc. Lint-reducing container
JP5047479B2 (ja) * 2005-08-19 2012-10-10 ユニ・チャーム株式会社 使い捨てマスクの耳掛部及びその製造方法
US7845351B2 (en) * 2005-08-31 2010-12-07 Kimberly-Clark Worldwide Inc. Germicidal face mask
US7614399B2 (en) 2005-11-08 2009-11-10 Rusl, Llc Body conforming textile holder and filter article
US8099794B2 (en) 2005-12-19 2012-01-24 Rusl, Llc Body conforming textile holder for electronic device
US7807591B2 (en) * 2006-07-31 2010-10-05 3M Innovative Properties Company Fibrous web comprising microfibers dispersed among bonded meltspun fibers
US9139940B2 (en) * 2006-07-31 2015-09-22 3M Innovative Properties Company Bonded nonwoven fibrous webs comprising softenable oriented semicrystalline polymeric fibers and apparatus and methods for preparing such webs
US7902096B2 (en) * 2006-07-31 2011-03-08 3M Innovative Properties Company Monocomponent monolayer meltblown web and meltblowing apparatus
US9770058B2 (en) * 2006-07-17 2017-09-26 3M Innovative Properties Company Flat-fold respirator with monocomponent filtration/stiffening monolayer
US7858163B2 (en) * 2006-07-31 2010-12-28 3M Innovative Properties Company Molded monocomponent monolayer respirator with bimodal monolayer monocomponent media
US7905973B2 (en) * 2006-07-31 2011-03-15 3M Innovative Properties Company Molded monocomponent monolayer respirator
RU2404306C2 (ru) * 2006-07-31 2010-11-20 3М Инновейтив Пропертиз Компани Способ изготовления формованных фильтрующих изделий
PL2049720T3 (pl) 2006-07-31 2014-02-28 3M Innovative Properties Co Sposób wytwarzania kształtowych produktów filtracyjnych
US7754041B2 (en) * 2006-07-31 2010-07-13 3M Innovative Properties Company Pleated filter with bimodal monolayer monocomponent media
US20080105261A1 (en) * 2006-11-03 2008-05-08 Primed Medical Products Inc. Air filtering soft face mask
US7642208B2 (en) 2006-12-14 2010-01-05 Kimberly-Clark Worldwide, Inc. Abrasion resistant material for use in various media
US20100184348A1 (en) * 2006-12-20 2010-07-22 Imerys Pigments, Inc. Spunlaid Fibers Comprising Coated Calcium Carbonate, Processes For Their Production, and Nonwoven Products
EP2150385B8 (en) * 2007-06-03 2012-03-21 Imerys Pigments, Inc. Spunlaid fibers comprising coated calcium carbonate, processes for their production, and nonwoven products
US20110059287A1 (en) * 2008-01-21 2011-03-10 Imerys Pigments, Inc. Fibers comprising at least one filler, processes for their production, and uses thereof
BRPI0906807B1 (pt) * 2008-01-21 2019-02-19 Imerys Pigments, Inc. Fibra monofilamentar
US20100035045A1 (en) * 2008-01-21 2010-02-11 Imerys Pigments, Inc. Fibers comprising at least one filler and processes for their production
EP2452737B1 (en) * 2009-07-08 2018-12-12 JNC Corporation Air filter material using multilayer electret nonwoven fabric
US10065481B2 (en) * 2009-08-14 2018-09-04 Freudenberg Filtration Technologies, L.P. Non-woven air exhauster and filter
KR101212426B1 (ko) * 2009-08-25 2012-12-13 도레이첨단소재 주식회사 개선된 특성을 갖는 복합 스펀본드 장섬유 다층 부직포 및 그 제조 방법
US20130108831A1 (en) * 2010-07-07 2013-05-02 3M Innovative Properties Company Patterned air-laid nonwoven electret fibrous webs and methods of making and using same
US9074301B2 (en) * 2010-10-25 2015-07-07 Rick L. Chapman Filtration materials using fiber blends that contain strategically shaped fibers and/or charge control agents
EP2726659B1 (en) * 2011-06-30 2020-11-11 3M Innovative Properties Company Non-woven electret fibrous webs and methods of making same
KR101139681B1 (ko) 2011-10-25 2012-04-30 (주)웰크론 한방조성물을 함유한 미용 마스크팩용 에어레이드 부직포를 제조하는 방법
CN102872653B (zh) * 2012-09-28 2014-10-22 上海交通大学 一种口罩用抗菌过滤材料及其制备方法
JP6263735B2 (ja) * 2013-11-06 2018-01-24 パナソニックIpマネジメント株式会社 綿状濾過体による電気集塵フィルタユニット
CN105195325B (zh) * 2014-06-03 2018-06-19 中国人民大学 基于温度调控的铌酸锂热释电材料在吸附大气颗粒物中的应用
CN104213202A (zh) * 2014-08-18 2014-12-17 贵州捷欣合金技术开发有限公司 一种纺丝液及其制备抗菌空气过滤膜的方法
US10792194B2 (en) 2014-08-26 2020-10-06 Curt G. Joa, Inc. Apparatus and methods for securing elastic to a carrier web
US10201198B2 (en) * 2014-12-23 2019-02-12 Profit Royal Pharmaceutical Limited Protective masks with coating comprising different electrospun fibers interweaved with each other, formulations forming the same, and method of producing thereof
US10046259B2 (en) * 2015-05-22 2018-08-14 Filtrec S.P.A. Polymer filtering material with a high accumulation capacity
ITUB20150723A1 (it) * 2015-05-22 2016-11-22 Filtrec Spa Materiale filtrante polimerico ad alta capacità di accumulo
US10252200B2 (en) 2016-02-17 2019-04-09 Hollingsworth & Vose Company Filter media including a filtration layer comprising synthetic fibers
US11014030B2 (en) 2016-02-17 2021-05-25 Hollingsworth & Vose Company Filter media including flame retardant fibers
CN106555277B (zh) * 2016-12-02 2019-05-10 武汉纺织大学 利用熔喷和静电纺丝制备复合超细纤维束的装置及方法
JP2021511165A (ja) 2018-01-29 2021-05-06 カート ジー.ジョア、インコーポレイテッド 吸収性衛生製品用の弾性複合材構造体を製造する装置および方法
US11925538B2 (en) 2019-01-07 2024-03-12 Curt G. Joa, Inc. Apparatus and method of manufacturing an elastic composite structure for an absorbent sanitary product
US11173072B2 (en) 2019-09-05 2021-11-16 Curt G. Joa, Inc. Curved elastic with entrapment
EP3741240B8 (de) * 2020-03-31 2022-05-18 Carl Freudenberg KG Gesichtsmaske mit filtermedium aus polypropylenfilamenten und verwendung einer geschichtmaske
EP3912687A1 (en) * 2020-05-20 2021-11-24 Carl Freudenberg KG Face mask withfilter mediummade from multicomponent filaments
EP4088602A1 (en) * 2021-05-12 2022-11-16 Carl Freudenberg KG Face mask with filter medium from split multicomponent filaments and meltblown fibres

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3338992A (en) * 1959-12-15 1967-08-29 Du Pont Process for forming non-woven filamentary structures from fiber-forming synthetic organic polymers
US3502763A (en) * 1962-02-03 1970-03-24 Freudenberg Carl Kg Process of producing non-woven fabric fleece
GB1088931A (en) * 1964-01-10 1967-10-25 Ici Ltd Continuous filament nonwoven materials
US3341394A (en) * 1966-12-21 1967-09-12 Du Pont Sheets of randomly distributed continuous filaments
US3542615A (en) * 1967-06-16 1970-11-24 Monsanto Co Process for producing a nylon non-woven fabric
US3849241A (en) * 1968-12-23 1974-11-19 Exxon Research Engineering Co Non-woven mats by melt blowing
DE2048006B2 (de) * 1969-10-01 1980-10-30 Asahi Kasei Kogyo K.K., Osaka (Japan) Verfahren und Vorrichtung zur Herstellung einer breiten Vliesbahn
DE1950669C3 (de) * 1969-10-08 1982-05-13 Metallgesellschaft Ag, 6000 Frankfurt Verfahren zur Vliesherstellung
GB1453447A (en) * 1972-09-06 1976-10-20 Kimberly Clark Co Nonwoven thermoplastic fabric
US4215682A (en) * 1978-02-06 1980-08-05 Minnesota Mining And Manufacturing Company Melt-blown fibrous electrets
FR2480807A1 (fr) * 1980-04-18 1981-10-23 Seplast Sa Procede de traitement superficiel d'une couche filtrante fibreuse, non tissee et tres aeree, formant electret et son application aux filtres et aux masques respiratoires notamment
US4340563A (en) * 1980-05-05 1982-07-20 Kimberly-Clark Corporation Method for forming nonwoven webs
US4375718A (en) * 1981-03-12 1983-03-08 Surgikos, Inc. Method of making fibrous electrets
US4374888A (en) * 1981-09-25 1983-02-22 Kimberly-Clark Corporation Nonwoven laminate for recreation fabric
US4419993A (en) * 1981-12-10 1983-12-13 Minnesota Mining & Manufacturing Company Anti-fogging surgical mask
CA1243963A (en) * 1983-02-01 1988-11-01 Harvey J. Berg Molded nonwoven shaped articles
US4547420A (en) * 1983-10-11 1985-10-15 Minnesota Mining And Manufacturing Company Bicomponent fibers and webs made therefrom
US4802473A (en) * 1983-11-07 1989-02-07 Tecnol, Inc. Face mask with ear loops
JPS60168511A (ja) * 1984-02-10 1985-09-02 Japan Vilene Co Ltd エレクトレツトフイルタの製造方法
US4662005A (en) * 1984-08-06 1987-05-05 Kimberly-Clark Corporation Conformable surgical face mask
US4874659A (en) * 1984-10-24 1989-10-17 Toray Industries Electret fiber sheet and method of producing same
DE3719420A1 (de) * 1987-06-11 1988-12-29 Sandler Helmut Helsa Werke Atemschutzmaske
US5035240A (en) * 1988-05-13 1991-07-30 Minnesota Mining And Manufacturing Company Elastomeric filtration materials
GR1001027B (el) * 1989-04-07 1993-03-31 Johnson & Johnson Medical Βελτιωμενο μεσο φιλτραρισματος και μασκα καλυψεως προσωπου η οποια περιλαμβανει αυτο.
JP2682130B2 (ja) * 1989-04-25 1997-11-26 三井石油化学工業株式会社 柔軟な長繊維不織布
US5206061A (en) * 1989-05-26 1993-04-27 Toray Industries, Inc. Dust-proof headgear
US5169706A (en) * 1990-01-10 1992-12-08 Kimberly-Clark Corporation Low stress relaxation composite elastic material
US5307796A (en) * 1990-12-20 1994-05-03 Minnesota Mining And Manufacturing Company Methods of forming fibrous filtration face masks
US5382400A (en) * 1992-08-21 1995-01-17 Kimberly-Clark Corporation Nonwoven multicomponent polymeric fabric and method for making same
US5336552A (en) * 1992-08-26 1994-08-09 Kimberly-Clark Corporation Nonwoven fabric made with multicomponent polymeric strands including a blend of polyolefin and ethylene alkyl acrylate copolymer
US5401446A (en) * 1992-10-09 1995-03-28 The University Of Tennessee Research Corporation Method and apparatus for the electrostatic charging of a web or film
EP0634511B1 (en) * 1993-07-16 1997-12-10 Chisso Corporation Microfine fiber product and process for producing the same
CA2124389C (en) * 1993-11-16 2005-08-23 Richard D. Pike Nonwoven filter media
US5540979A (en) * 1994-05-16 1996-07-30 Yahiaoui; Ali Porous non-woven bovine blood-oxalate absorbent structure

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EP0868553B1 (en) 2002-03-27
MX9804961A (es) 1998-09-30
AU1685097A (en) 1997-07-17
AU699795B2 (en) 1998-12-17
CN1209178A (zh) 1999-02-24
DE69620227T2 (de) 2002-12-12
DE69620227D1 (de) 2002-05-02
EP0868553A2 (en) 1998-10-07
KR19990076687A (ko) 1999-10-15
US5817584A (en) 1998-10-06
BR9612266A (pt) 2001-02-28
CN1077167C (zh) 2002-01-02
JP2000502574A (ja) 2000-03-07
WO1997023246A2 (en) 1997-07-03
WO1997023246A3 (en) 1997-08-21
CA2239789A1 (en) 1997-07-03

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