KR850006150A - 여과용 섬유 성형제품 및 그 제조방법 - Google Patents

여과용 섬유 성형제품 및 그 제조방법 Download PDF

Info

Publication number
KR850006150A
KR850006150A KR1019850001995A KR850001995A KR850006150A KR 850006150 A KR850006150 A KR 850006150A KR 1019850001995 A KR1019850001995 A KR 1019850001995A KR 850001995 A KR850001995 A KR 850001995A KR 850006150 A KR850006150 A KR 850006150A
Authority
KR
South Korea
Prior art keywords
fibrous
filtration
fibers
layer
forming
Prior art date
Application number
KR1019850001995A
Other languages
English (en)
Other versions
KR930001660B1 (ko
Inventor
전 버그 하아비
Original Assignee
도날드 밀러 셀
미네소타 마이닝 앤드 매뉴 팩츄어링 컴패니
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24376825&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR850006150(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 도날드 밀러 셀, 미네소타 마이닝 앤드 매뉴 팩츄어링 컴패니 filed Critical 도날드 밀러 셀
Publication of KR850006150A publication Critical patent/KR850006150A/ko
Application granted granted Critical
Publication of KR930001660B1 publication Critical patent/KR930001660B1/ko

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • A41D13/1146—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration obtained by moulding
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/558—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 by welding together the fibres, e.g. by partially melting or dissolving in combination with mechanical or physical treatments other than embossing
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—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 by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—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 by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/903—Microfiber, less than 100 micron diameter
    • 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
    • Y10T428/2905—Plural and with bonded intersections only
    • 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
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • 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
    • Y10T442/614—Strand or fiber material specified as having microdimensions [i.e., microfiber]
    • Y10T442/621—Including other strand or fiber material in a different layer not specified as having microdimensions
    • 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]
    • Y10T442/637—Including 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
    • Y10T442/641—Sheath-core multicomponent strand or fiber material

Abstract

내용 없음

Description

여과용 섬유 성형제품 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 실시예에 따른 최종 안면마스크의 정면도.
제2도는 제1도에 도시된 안면마스크의 단면 일부를 도시한 부분단면도.
제3도는 안면마스크에 부착될 본 발명의 여과제품의 사시도.
* 도면의 주요부분에 대한 간단한 설명
10:마스크 11:마스크 몸체 12:탄성 헤드밴드 13:유연성 금속밴드 14:제1형상층 15:여과층 16:제2형상층 20:마스크

Claims (11)

  1. 성형에 의해 제조되며 섬유질인 여과용 섬유 성형제품에 있어서, 서로 마주 접촉하는 방식으로 가열 및 성형압력에 의해 조립되게 되는 적어도 두개 이상의 섬유층, 즉, 기본 무게가 전체적으로 입방미터당 250그람 이하이고 또 최종 마무리된 여과제춤을 통과하는 압력강하가 전체적으로 20%이하로 되게하고 또 그중의 적어도 하나는 섬유를 포함하고 있어 상기 섬유 위에 있는 결합물질의 결합에 의해 서로 섬유계면의 접합점에서 결합되게 되는 적어도 하나이상의 형성층과, 상기의 여과용 섬유성형제품을 통과하는 가스흐름으로 부터 상기의 형성층보다 더 높은 비율로 불순물 입자들을 제거하는 작용을 하도록 상기 형성층(들)과의 전게면에서 적어도 섬유가 서로 엉키는 방법에 의해 상기의 형성층과 결합되게 되는 형성층의 기본무게는 입방미터당 85그람 이하인 것을 특징으로 하는 여과용 섬유 성형제품.
  2. 제1항에 있어서, 상기의 여과층은 평균직경이 10마이크로미터 이하인 멜트-블로운 섬유를 포함하는 것을 특징으로 하는 여과용 섬유 성형제품.
  3. 제2항에 있어서, 상기의 멜트-브로운 섬유는 지속성 전하를 띠는 것을 특징으로 하는 여과용 섬유 성형제품.
  4. 제1항에 있어서, 상기의 여과층은 경련성-피막섬유를 포함하는 것을 특징으로 하는 여과용 섬유 성형제품.
  5. 제1항 내지 4항중의 어느 한항에서, 상기의 형성층은 2성분 섬유를 포함하고 있고, 또 그중의 한 성분이 상기의 결합물질인 것을 특징으로 하는 여과용 섬유 성형제품.
  6. 제1항 내지 5항중의 어느 한 항에 있어서, 상기의 여과제품의 압력강하는 분당 85미터의 대향속도에서 약 30밀리미터 이하의 수압으로 나타나는 것을 특징으로 하는 여과용 섬유성형제품.
  7. 제1항 내지 6항중의 어느 한 항에 있어서, 상기 여과층의 양측면에 배열되는 2개의 형성층을 포함하는 것을 특징으로 하는 여과용 섬유 성형제품.
  8. 제7항에 있어서, 제2형성층의 섬유들은 그 섬유들 위에 있는 결합물질에 의해 서로 섬유계면의 접합점에서 결합되는 것을 특징으로 하는 여과용 섬유 성형제품.
  9. 여과용 섬유 성형제품의 제조방법에 있어서, 적어도 두개 이상의 섬유층, 즉, 기본 무게가 전체적으로 입방미터당 250그람 이하이고 또, 전제적으로 적어도 5밀리미터 이상의 두께를 갖고 또 그중의 적어도 하나는 섬유를 포함하고 있어 상기 섬유 위에 있는 결합물질의 결합에 의해 서로 섬유계면의 접합점에서 결합되게되는 적어도 하나 이상의 형상층과, 상기 여과용 섬유성형제품을 통과하는 가스흐름으로 부터 상기 형성층보다 더 높은 비율로 불순물입자들을 제거하는 작용을 하는 여과층을 서로 마주 접촉하도록 조립하고, 그후, 상기의 조립품이 비-플랫형이 될 정도로 상기의 조립품에 충분한 가열 및 압력을 가하여 적어도 상기 형성층의 하나 이상의 섬유가 결합물질의 결합에 의해 결합되게하는 방법으로 여과용 섬유성형제품을 제조함으로써, 상기의 형성층이 최종여과제품을 통과하는 압력강하를 전체적으로 20%이하로 일으키고 또 상기의 여여층이 상기의 형성층과의 전계면에서 적어도 섬유가 서로 엉키는 방법에 의해 상기의 형성층과 결합되도록 해주는 것을 특징으로 하는 여과용 섬유 성형제품의 제조방법.
  10. 제9항에 있어서, 상기의 두 형성층은 각각 적어도 초기두께가 5밀리미터이상의 상태로 상기 여과층의 양측면 각각에 위치되는 것을 특징으로 하는 여과용 섬유 성형제품의 제조방법.
  11. 제9항에 있어서, 상기 형성층중 적어도 하나는 두 성분중 하나의 성분이 상기의 결합물질인 2 성분섬유를 포함하는 것을 특징으로 하는 여과용 섬유 성형제품의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019850001995A 1984-03-27 1985-03-26 여과용 섬유 성형제품 및 그 제조방법 KR930001660B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/593,937 US4536440A (en) 1984-03-27 1984-03-27 Molded fibrous filtration products
US593937 1984-03-27

Publications (2)

Publication Number Publication Date
KR850006150A true KR850006150A (ko) 1985-10-02
KR930001660B1 KR930001660B1 (ko) 1993-03-08

Family

ID=24376825

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850001995A KR930001660B1 (ko) 1984-03-27 1985-03-26 여과용 섬유 성형제품 및 그 제조방법

Country Status (11)

Country Link
US (1) US4536440A (ko)
EP (1) EP0162546B1 (ko)
JP (1) JPS60215372A (ko)
KR (1) KR930001660B1 (ko)
AU (1) AU572264B2 (ko)
BR (1) BR8501322A (ko)
CA (1) CA1252396A (ko)
DE (1) DE3576047D1 (ko)
ES (1) ES8705254A1 (ko)
MX (1) MX160249A (ko)
ZA (1) ZA851265B (ko)

Families Citing this family (194)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4737404A (en) * 1984-08-16 1988-04-12 Chicopee Fused laminated fabric
US4872870A (en) * 1984-08-16 1989-10-10 Chicopee Fused laminated fabric and panty liner including same
DE3687419T2 (de) * 1985-01-25 1993-05-19 Asahi Chemical Ind Nichtgewobene stoffbahn, oel-wasser-trennungsfilter und verfahren zur oel-wasser-trennung.
GB2176404B (en) * 1985-06-13 1988-07-27 Od G Univ Im I I Mechnikova Respirator
JPS62199860A (ja) * 1986-02-18 1987-09-03 カイハツボ−ド株式会社 木質繊維マツト
US4807619A (en) * 1986-04-07 1989-02-28 Minnesota Mining And Manufacturing Company Resilient shape-retaining fibrous filtration face mask
DE3638636A1 (de) * 1986-11-12 1988-05-26 Nowak Gerd Filter gegen mikro-organismen und anorganische feinst-partikel als hauptbestandteil von gesichtsmasken fuer chirurgen, krankenhauspersonal sowie fuer den allgemeinen arbeits- und personenschutz
JPH0522192Y2 (ko) * 1986-12-06 1993-06-07
US4840832A (en) * 1987-06-23 1989-06-20 Collins & Aikman Corporation Molded automobile headliner
US5150703A (en) * 1987-10-02 1992-09-29 Tecnol Medical Products, Inc. Liquid shield visor for a surgical mask with a bottom notch to reduce glare
US4830904A (en) * 1987-11-06 1989-05-16 James River Corporation Porous thermoformable heat sealable nonwoven fabric
GR1001027B (el) * 1989-04-07 1993-03-31 Johnson & Johnson Medical Βελτιωμενο μεσο φιλτραρισματος και μασκα καλυψεως προσωπου η οποια περιλαμβανει αυτο.
CH680994A5 (ko) * 1989-07-31 1992-12-31 Tesch G H
US5082476A (en) * 1990-10-19 1992-01-21 Donaldson Company, Inc. Filtration arrangement and method
US5238474A (en) * 1990-10-19 1993-08-24 Donaldson Company, Inc. Filtration arrangement
US5307796A (en) * 1990-12-20 1994-05-03 Minnesota Mining And Manufacturing Company Methods of forming fibrous filtration face masks
US5306534A (en) * 1991-03-22 1994-04-26 Home Care Industries, Inc. Vacuum cleaner bag with electrostatically charged meltblown layer
US5374458A (en) * 1992-03-13 1994-12-20 Minnesota Mining And Manufacturing Company Molded, multiple-layer face mask
JP3259782B2 (ja) * 1992-07-31 2002-02-25 東洋紡績株式会社 空気清浄用フィルター濾材
US5753343A (en) * 1992-08-04 1998-05-19 Minnesota Mining And Manufacturing Company Corrugated nonwoven webs of polymeric microfiber
US5765556A (en) * 1992-12-16 1998-06-16 Tecnol Medical Products, Inc. Disposable aerosol mask with face shield
US5658640A (en) * 1993-08-17 1997-08-19 Minnesota Mining And Manufacturing Company Electret filter media having an undulated surface
US5464010A (en) 1993-09-15 1995-11-07 Minnesota Mining And Manufacturing Company Convenient "drop-down" respirator harness structure and method of use
JP4045365B2 (ja) * 1993-11-15 2008-02-13 株式会社日本吸収体技術研究所 抗菌性複合不織布およびその製造方法
US5553608A (en) * 1994-07-20 1996-09-10 Tecnol Medical Products, Inc. Face mask with enhanced seal and method
US6055982A (en) * 1993-12-15 2000-05-02 Kimberly-Clark Worldwide, Inc. Disposable face mask with enhanced fluid barrier
US5724964A (en) * 1993-12-15 1998-03-10 Tecnol Medical Products, Inc. Disposable face mask with enhanced fluid barrier
US5699792A (en) * 1994-07-20 1997-12-23 Tecnol Medical Products, Inc. Face mask with enhanced facial seal
US5695376A (en) * 1994-09-09 1997-12-09 Kimberly-Clark Worldwide, Inc. Thermoformable barrier nonwoven laminate
CA2160282A1 (en) * 1995-02-14 1996-08-15 Michael R. Gildersleeve Supported membrane assembly
US6568392B1 (en) * 1995-09-11 2003-05-27 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
WO1996028216A1 (en) 1995-03-09 1996-09-19 Minnesota Mining And Manufacturing Company Fold flat respirators and processes for preparing same
US5669949A (en) * 1995-04-21 1997-09-23 Donaldson Company, Inc. Air filtration arrangement
US5665235A (en) * 1995-05-09 1997-09-09 Pall Corporation Supported fibrous web assembly
US5759926A (en) * 1995-06-07 1998-06-02 Kimberly-Clark Worldwide, Inc. Fine denier fibers and fabrics made therefrom
US5620785A (en) * 1995-06-07 1997-04-15 Fiberweb North America, Inc. Meltblown barrier webs and processes of making same
US5804512A (en) * 1995-06-07 1998-09-08 Bba Nonwovens Simpsonville, Inc. Nonwoven laminate fabrics and processes of making same
US5908598A (en) * 1995-08-14 1999-06-01 Minnesota Mining And Manufacturing Company Fibrous webs having enhanced electret properties
US5709735A (en) * 1995-10-20 1998-01-20 Kimberly-Clark Worldwide, Inc. High stiffness nonwoven filter medium
BR9611827A (pt) 1995-11-30 1999-09-28 Kimberly Clark Co trama não entrelaçada de microfibras superfinas.
US5696199A (en) * 1995-12-07 1997-12-09 Minnesota Mining And Manufacturing Company Pressure-sensitive adhesive polyacrylate polymer and method of making
US6070579A (en) * 1996-03-08 2000-06-06 3M Innovative Properties Company Elastomeric composite headband
US5724677A (en) * 1996-03-08 1998-03-10 Minnesota Mining And Manufacturing Company Multi-part headband and respirator mask assembly and process for making same
US5858044A (en) * 1996-07-11 1999-01-12 Donaldson Company, Inc. Filter arrangement including removable filter with first and second media secured together
US5819731A (en) * 1997-01-03 1998-10-13 Minnesota Mining And Manufacturing Company Face mask having a combination adjustable ear loop and drop down band
US6041782A (en) * 1997-06-24 2000-03-28 3M Innovative Properties Company Respiratory mask having comfortable inner cover web
US6238466B1 (en) 1997-10-01 2001-05-29 3M Innovative Properties Company Electret articles and filters with increased oily mist resistance
US6213122B1 (en) 1997-10-01 2001-04-10 3M Innovative Properties Company Electret fibers and filter webs having a low level of extractable hydrocarbons
US6068799A (en) * 1997-10-01 2000-05-30 3M Innovative Properties Company Method of making electret articles and filters with increased oily mist resistance
US6732733B1 (en) 1997-10-03 2004-05-11 3M Innovative Properties Company Half-mask respirator with head harness assembly
US6062221A (en) 1997-10-03 2000-05-16 3M Innovative Properties Company Drop-down face mask assembly
GB9723740D0 (en) * 1997-11-11 1998-01-07 Minnesota Mining & Mfg Respiratory masks incorporating valves or other attached components
US6102039A (en) * 1997-12-01 2000-08-15 3M Innovative Properties Company Molded respirator containing sorbent particles
GB2333741B (en) 1998-01-30 2002-09-04 Jason Inc Vehicle headliner and laminate therefor
US6007608A (en) * 1998-07-10 1999-12-28 Donaldson Company, Inc. Mist collector and method
US6139308A (en) 1998-10-28 2000-10-31 3M Innovative Properties Company Uniform meltblown fibrous web and methods and apparatus for manufacturing
US6497232B2 (en) 1999-02-22 2002-12-24 Cabot Safety Intermediate Corporation Respirator headpiece and release mechanism
US6110249A (en) 1999-03-26 2000-08-29 Bha Technologies, Inc. Filter element with membrane and bicomponent substrate
US6322604B1 (en) 1999-07-22 2001-11-27 Kimberly-Clark Worldwide, Inc Filtration media and articles incorporating the same
US6627563B1 (en) * 1999-08-19 2003-09-30 3M Innovative Properties Company Oily-mist resistant filter that has nondecreasing efficiency
US6406657B1 (en) * 1999-10-08 2002-06-18 3M Innovative Properties Company Method and apparatus for making a fibrous electret web using a wetting liquid and an aqueous polar liquid
US6729332B1 (en) 1999-10-22 2004-05-04 3M Innovative Properties Company Retention assembly with compression element and method of use
US6427693B1 (en) 2000-05-01 2002-08-06 Kimberly-Clark Worldwide, Inc. Face mask structure
US6815383B1 (en) 2000-05-24 2004-11-09 Kimberly-Clark Worldwide, Inc. Filtration medium with enhanced particle holding characteristics
US6460539B1 (en) 2000-09-21 2002-10-08 3M Innovative Properties Company Respirator that includes an integral filter element, an exhalation valve, and impactor element
US7601262B1 (en) 2001-06-22 2009-10-13 Argonide Corporation Sub-micron filter
USD473937S1 (en) 2001-10-16 2003-04-29 Cabot Safety Intermediate Corp. Respirator
JP4361263B2 (ja) * 2002-02-07 2009-11-11 本田技研工業株式会社 フィルタエレメント
US7677248B2 (en) * 2002-06-05 2010-03-16 Louis M. Gerson Co., Inc. Stiffened filter mask
AU2003245243A1 (en) * 2002-06-05 2003-12-22 Louis M. Gerson Co., Inc. Face mask and method of manufacturing the same
US6923182B2 (en) * 2002-07-18 2005-08-02 3M Innovative Properties Company Crush resistant filtering face mask
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
US7021296B2 (en) * 2002-08-16 2006-04-04 General Motors Corporation Method and system of evaporative emission control using activated carbon fibers
US6941949B2 (en) 2002-12-19 2005-09-13 Kimberly-Clark Worldwide, Inc. Disposable face mask
ITPS20040007A1 (it) * 2004-02-18 2004-05-18 Cl Com Advanced Tecnology Srl Maschera di protezione contro gli agenti biologici
US8021457B2 (en) 2004-11-05 2011-09-20 Donaldson Company, Inc. Filter media and structure
KR20070085812A (ko) 2004-11-05 2007-08-27 도날드슨 캄파니 인코포레이티드 필터 매체 및 구조
US8057567B2 (en) 2004-11-05 2011-11-15 Donaldson Company, Inc. Filter medium and breather filter structure
EP1846136A2 (en) 2005-02-04 2007-10-24 Donaldson Company, Inc. Aerosol separator
EP1858618B1 (en) 2005-02-22 2009-09-16 Donaldson Company, Inc. Aerosol separator
US8171933B2 (en) * 2005-08-25 2012-05-08 3M Innovative Properties Company Respirator having preloaded nose clip
US7390343B2 (en) * 2005-09-12 2008-06-24 Argonide Corporation Drinking water filtration device
WO2007033173A1 (en) * 2005-09-12 2007-03-22 Argonide Corporation Electrostatic air filter
US7691168B2 (en) * 2005-10-19 2010-04-06 3M Innovative Properties Company Highly charged, charge stable nanofiber web
US7503326B2 (en) * 2005-12-22 2009-03-17 3M Innovative Properties Company Filtering face mask with a unidirectional valve having a stiff unbiased flexible flap
WO2008097307A2 (en) * 2006-01-25 2008-08-14 Kanzer Steve H Droplet collection devices and methods to detect and control airborne communicable diseases utilizing rfid
US20070251522A1 (en) * 2006-05-01 2007-11-01 Welchel Debra N Respirator with exhalation vents
US20100224199A1 (en) * 2006-05-01 2010-09-09 Kimberly-Clark Worldwide, Inc. Respirator
ITPS20060012A1 (it) 2006-05-18 2007-11-19 Cl Com Srl Nuova maschera di protezione contro gli agenti biologici a due porzioni.
DE102006027578A1 (de) * 2006-06-14 2007-12-20 Robert Bosch Gmbh Filter zur Reinigung von Gasgemischen sowie Verfahren zu dessen Herstellung
US9770058B2 (en) 2006-07-17 2017-09-26 3M Innovative Properties Company Flat-fold respirator with monocomponent filtration/stiffening monolayer
US7807591B2 (en) * 2006-07-31 2010-10-05 3M Innovative Properties Company Fibrous web comprising microfibers dispersed among bonded meltspun fibers
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
US7902096B2 (en) * 2006-07-31 2011-03-08 3M Innovative Properties Company Monocomponent monolayer meltblown web and meltblowing apparatus
RU2404306C2 (ru) * 2006-07-31 2010-11-20 3М Инновейтив Пропертиз Компани Способ изготовления формованных фильтрующих изделий
WO2008085545A2 (en) 2006-07-31 2008-07-17 3M Innovative Properties Company Method for making shaped filtration articles
US7754041B2 (en) * 2006-07-31 2010-07-13 3M Innovative Properties Company Pleated filter with bimodal monolayer monocomponent media
WO2008130429A2 (en) * 2006-09-14 2008-10-30 The Research Foundation of State Univesity of New York Detecting nitric oxide
US20080083411A1 (en) * 2006-10-06 2008-04-10 Steven Lyon Guth Self-Sterilizing Particulate Respirator Facepiece and Method for Using Same
JP2010529902A (ja) 2007-02-22 2010-09-02 ドナルドソン カンパニー インコーポレイテッド フイルタ要素及び方法
WO2008103821A2 (en) 2007-02-23 2008-08-28 Donaldson Company, Inc. Formed filter element
US7837756B2 (en) * 2007-04-05 2010-11-23 Aaf-Mcquay Inc. Filter with ePTFE and method of forming
US9770611B2 (en) 2007-05-03 2017-09-26 3M Innovative Properties Company Maintenance-free anti-fog respirator
US20080271739A1 (en) 2007-05-03 2008-11-06 3M Innovative Properties Company Maintenance-free respirator that has concave portions on opposing sides of mask top section
US7989372B2 (en) * 2007-06-22 2011-08-02 3M Innovative Properties Company Molded respirator comprising meltblown fiber web with staple fibers
US20080315454A1 (en) * 2007-06-22 2008-12-25 3M Innovative Properties Company Method of making meltblown fiber web with staple fibers
US7989371B2 (en) * 2007-06-22 2011-08-02 3M Innovative Properties Company Meltblown fiber web with staple fibers
WO2009003057A1 (en) * 2007-06-26 2008-12-31 Filligent Limited Devices and methods for decreasing human pathogen transmission
US20090000624A1 (en) * 2007-06-28 2009-01-01 3M Innovative Properties Company Respirator having a harness and methods of making and fitting the same
US20090044809A1 (en) * 2007-08-16 2009-02-19 Kimberly-Clark Worldwide, Inc. Vent and strap fastening system for a disposable respirator
US20090044811A1 (en) * 2007-08-16 2009-02-19 Kimberly-Clark Worldwide, Inc. Vent and strap fastening system for a disposable respirator providing improved donning
US9642403B2 (en) 2007-08-16 2017-05-09 Kimberly-Clark Worldwide, Inc. Strap fastening system for a disposable respirator providing improved donning
US20090078264A1 (en) * 2007-09-20 2009-03-26 3M Innovative Properties Company Filtering face-piece respirator having a frame for supporting the exhalation valve
BRPI0817051A2 (pt) 2007-09-20 2019-09-24 3M Innovative Properties Co "respirador com peça facial filtrante"
KR20100098502A (ko) * 2007-10-09 2010-09-07 쓰리엠 이노베이티브 프로퍼티즈 컴파니 마스크 본체 내로 성형된 코 클립을 구비한 안면부 여과식 호흡기
JP2009106468A (ja) * 2007-10-30 2009-05-21 Kurashiki Seni Kako Kk 衛生マスクおよびその基材
EP2217334B1 (en) 2007-11-27 2013-11-20 3M Innovative Properties Company Face mask with unidirectional valve
EP2222908B1 (en) * 2007-12-06 2013-01-16 3M Innovative Properties Company Electret webs with charge-enhancing additives
US8061356B2 (en) 2008-02-19 2011-11-22 Prestige Ameritech Ltd. Directional flat face mask
US20090235934A1 (en) * 2008-03-24 2009-09-24 3M Innovative Properties Company Filtering face-piece respirator having an integrally-joined exhalation valve
JP2009254418A (ja) * 2008-04-11 2009-11-05 Three M Innovative Properties Co マスク用ノーズクリップ及びマスク
BRPI0909959B1 (pt) * 2008-06-02 2018-11-13 3M Innovative Properties Co manta de eletreto e meio de filtro à base de eletreto
US20110137082A1 (en) * 2008-06-02 2011-06-09 Li Fuming B Charge-enhancing additives for electrets
US7765698B2 (en) * 2008-06-02 2010-08-03 3M Innovative Properties Company Method of making electret articles based on zeta potential
US8673040B2 (en) 2008-06-13 2014-03-18 Donaldson Company, Inc. Filter construction for use with air in-take for gas turbine and methods
US8105411B2 (en) * 2008-08-28 2012-01-31 Illinois Tool Works Inc. Fluid filter system and method
US11083916B2 (en) 2008-12-18 2021-08-10 3M Innovative Properties Company Flat fold respirator having flanges disposed on the mask body
US20100154101A1 (en) * 2008-12-23 2010-06-24 Tai-Kuang Wang Method for elastic sweatband and headgear using the same
US8021996B2 (en) * 2008-12-23 2011-09-20 Kimberly-Clark Worldwide, Inc. Nonwoven web and filter media containing partially split multicomponent fibers
US9885154B2 (en) 2009-01-28 2018-02-06 Donaldson Company, Inc. Fibrous media
US20100252047A1 (en) 2009-04-03 2010-10-07 Kirk Seth M Remote fluorination of fibrous filter webs
PL2414573T3 (pl) 2009-04-03 2014-01-31 3M Innovative Properties Co Sieci elektretowe z dodatkami zwiększającymi ładunek
AU2010232746B2 (en) 2009-04-03 2013-05-23 3M Innovative Properties Company Processing aids for olefinic webs, including electret webs
ITPD20090117A1 (it) * 2009-05-04 2010-11-05 Euroflex Srl Spruzzatore a mano per liquidi detergenti
BRPI1010461A2 (pt) 2009-09-18 2013-01-22 3M Innovative Properties Co respirador de peÇa facial filtrante e mÉtodo de produÇço de um respirador de peÇa facial filtrante
US8881729B2 (en) 2009-09-18 2014-11-11 3M Innovative Properties Company Horizontal flat-fold filtering face-piece respirator having indicia of symmetry
US8640704B2 (en) 2009-09-18 2014-02-04 3M Innovative Properties Company Flat-fold filtering face-piece respirator having structural weld pattern
US8528560B2 (en) 2009-10-23 2013-09-10 3M Innovative Properties Company Filtering face-piece respirator having parallel line weld pattern in mask body
US8365771B2 (en) 2009-12-16 2013-02-05 3M Innovative Properties Company Unidirectional valves and filtering face masks comprising unidirectional valves
EP2519326A4 (en) 2009-12-30 2016-08-24 3M Innovative Properties Co FILTERING ATEM CONNECTION WITH AN AUXETIC NETWORK IN THE MASKENKÖRPER
US20120017911A1 (en) 2010-07-26 2012-01-26 3M Innovative Properties Company Filtering face-piece respirator having foam shaping layer
US20120125341A1 (en) 2010-11-19 2012-05-24 3M Innovative Properties Company Filtering face-piece respirator having an overmolded face seal
US8794238B2 (en) 2010-12-28 2014-08-05 3M Innovative Properties Company Splash-fluid resistant filtering face-piece respirator
US9027554B2 (en) 2011-12-06 2015-05-12 3M Innovative Properties Company Respirator having foam shaping layer with recessed regions surrounding air passageways
US20130146061A1 (en) * 2011-12-09 2013-06-13 3M Innovative Properties Company Respirator made from in-situ air-laid web(s)
US9108968B2 (en) 2012-04-25 2015-08-18 Ppg Industries Ohio, Inc. Methods for producing 1,5,7-triazabicyclo[4.4.0]dec-5-ene by reaction of a disubstituted carbodiimide and dipropylene triamine
US9309131B2 (en) 2012-06-27 2016-04-12 Argonide Corporation Aluminized silicious powder and water purification device incorporating same
US20140041671A1 (en) 2012-08-10 2014-02-13 3M Innovative Properties Company Refill filtering face-piece respirator
US11116998B2 (en) 2012-12-27 2021-09-14 3M Innovative Properties Company Filtering face-piece respirator having folded flange
US10182603B2 (en) 2012-12-27 2019-01-22 3M Innovative Properties Company Filtering face-piece respirator having strap-activated folded flange
US20140182600A1 (en) 2012-12-27 2014-07-03 3M Innovative Properties Company Filtering face-piece respirator having welded indicia hidden in pleat
US9259058B2 (en) 2013-02-01 2016-02-16 3M Innovative Properties Company Personal protective equipment strap retaining devices
US9247788B2 (en) 2013-02-01 2016-02-02 3M Innovative Properties Company Personal protective equipment strap retaining devices
US10207129B2 (en) 2013-08-08 2019-02-19 Richard H. Koehler Face mask seal for use with respirator devices and surgical facemasks, having an anatomically defined geometry conforming to critical fit zones of human facial anatomy, and capable of being actively custom fitted to the user's face
US9770057B2 (en) 2013-08-29 2017-09-26 3M Innovative Properties Company Filtering face-piece respirator having nose cushioning member
US9603396B2 (en) 2013-08-29 2017-03-28 3M Innovative Properties Company Filtering face-piece respirator having nose notch
USD746439S1 (en) 2013-12-30 2015-12-29 Kimberly-Clark Worldwide, Inc. Combination valve and buckle set for disposable respirators
EP3110275B1 (en) 2014-02-27 2019-01-09 3M Innovative Properties Company Respirator having elastic straps having openwork structure
US10040621B2 (en) 2014-03-20 2018-08-07 3M Innovative Properties Company Filtering face-piece respirator dispenser
US9868002B2 (en) 2014-07-17 2018-01-16 3M Innovative Properties Company Respirator including contrast layer
JP2017525862A (ja) 2014-08-18 2017-09-07 スリーエム イノベイティブ プロパティズ カンパニー ポリマーネットを含むレスピレータ及びポリマーネットを含むレスピレータを形成する方法
CA2966012A1 (en) 2014-10-31 2016-05-06 3M Innovative Properties Company Respirator having corrugated filtering structure
GB201508114D0 (en) 2015-05-12 2015-06-24 3M Innovative Properties Co Respirator tab
US9463340B1 (en) 2015-05-20 2016-10-11 Marc Irwin Epstein Draping particulate filter for the nostrils and mouth and method of manufacture thereof
US9468783B1 (en) 2015-05-20 2016-10-18 Marc Irwin Epstein Draping particulate filter for the nostrils and mouth and method of manufacture thereof
RU2015141569A (ru) 2015-09-30 2017-04-05 3М Инновейтив Пропертиз Компани Складной респиратор с лицевой маской и клапаном выдоха
WO2017066284A1 (en) 2015-10-12 2017-04-20 3M Innovative Properties Company Filtering face-piece respirator including functional material and method of forming same
EP3374035B1 (en) 2015-11-11 2020-12-23 3M Innovative Properties Company Shape retaining flat-fold respirator
CA3036977A1 (en) 2016-09-16 2018-03-22 3M Innovative Properties Company Exhalation valve and respirator including same
WO2018081227A1 (en) 2016-10-28 2018-05-03 3M Innovative Properties Company Respirator including reinforcing element
WO2018094472A1 (en) * 2016-11-28 2018-05-31 Clean Stream Technologies Respirator mask
RU2671037C2 (ru) 2017-03-17 2018-10-29 3М Инновейтив Пропертиз Компани Складной респиратор с лицевой маской типа ffp3
JP7186213B2 (ja) 2017-07-14 2022-12-08 スリーエム イノベイティブ プロパティズ カンパニー 複数の液体ストリームを搬送するためのアダプタ
CN107467748A (zh) * 2017-09-22 2017-12-15 山东工大新材料研究院有限公司 新型防雾霾口罩制作方法
CN107373823A (zh) * 2017-09-22 2017-11-24 山东工大新材料研究院有限公司 一种新型防雾霾口罩
CN109757808A (zh) * 2017-11-07 2019-05-17 深中海医疗用品（深圳）有限公司 杯型口罩制造方法及杯型口罩
CN114173904A (zh) 2019-06-28 2022-03-11 3M创新有限公司 过滤器组件、预过滤器组件和包括它们的呼吸器
EP3990685A1 (en) 2019-06-28 2022-05-04 3M Innovative Properties Co. Core-sheath fibers, nonwoven fibrous web, and respirator including the same
DE102020133846B4 (de) 2020-04-01 2023-05-04 Pi4 Robotics Gmbh Tragbares Atemluft-Desinfektionssystem
EP3888758A1 (de) 2020-04-01 2021-10-06 pi4_robotics GmbH Tragbares atemluft-desinfektionssystem
US11219255B2 (en) 2020-04-08 2022-01-11 Terry Earl Brady Self-contained, mobile breathing apparatus or appliance that supplies pathogen and endotoxin free, rhythmically breathable air to the wearer or treated space through active, continuous bio-deactivation and destruction of bacteria, fungi, viral and allergenic/antigenic matter safely when using benign, household, rechargeable filtration media
US20210337802A1 (en) 2020-05-03 2021-11-04 Tygrus, LLC Composition and process for reconditioning respirators and other personal protective equipment
US11420080B2 (en) 2020-05-12 2022-08-23 Katherine M. Lean Secure liquid consumption face covering
US20200376305A1 (en) 2020-06-10 2020-12-03 Noah Lang Personal protective equipment system for safe air, train or bus travel protecting against infectious agents including novel coronavirus - covid-19
US11786853B2 (en) 2020-08-10 2023-10-17 F.N. Smith Corporation Facepiece electrostatic charging devices and methods thereof
USD941989S1 (en) 2020-09-25 2022-01-25 Huhtamaki, Inc. Respiratory mask
US20230390678A1 (en) 2020-11-02 2023-12-07 3M Innovative Properties Company Core-sheath fibers, nonwoven fibrous web, and filtering articles including the same
US20230368239A1 (en) * 2020-11-30 2023-11-16 Wells Fargo Bank, N.A. System and method for sensor-based mask detection
WO2022130080A1 (en) 2020-12-18 2022-06-23 3M Innovative Properties Company Electrets comprising a substituted cyclotriphosphazene compound and articles therefrom
DE102020134665B4 (de) 2020-12-22 2024-04-25 HMT Hygiene- Medizin- & Krankenhaus-Technik GmbH Schutzmaske
DE102020134616B4 (de) 2020-12-22 2023-08-03 HMT Hygiene- Medizin- & Krankenhaus-Technik GmbH Schutzmaske
DE102020134675A1 (de) 2020-12-22 2022-06-23 HMT Hygiene- Medizin- & Krankenhaus-Technik GmbH Schutzmaske
JP6960552B1 (ja) * 2021-06-02 2021-11-05 シンクブレイン株式会社 マスク製造方法および枠部材変形用器具

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA728462A (en) * 1966-02-22 Patrick H. Carey, Jr. Filter face mask
US3220409A (en) * 1961-03-28 1965-11-30 Johnson & Johnson Face mask
US3333585A (en) * 1964-12-14 1967-08-01 Minnesota Mining & Mfg Cold weather face mask
US3620214A (en) * 1969-07-09 1971-11-16 Bard Inc C R Molded surgical mask
GB1449285A (en) * 1973-12-18 1976-09-15 Johnson & Johnson Surgical face mask
JPS6112704B2 (ko) * 1974-01-09 1986-04-09 Johnson & Johnson Prod Inc
US3971373A (en) * 1974-01-21 1976-07-27 Minnesota Mining And Manufacturing Company Particle-loaded microfiber sheet product and respirators made therefrom
JPS51133193U (ko) * 1975-04-14 1976-10-27
DE2717968A1 (de) * 1976-05-11 1977-12-01 American Optical Corp Einmal-atemmaske, verfahren und vorrichtung zum herstellen derselben
GB1596025A (en) * 1977-03-03 1981-08-19 Ici Ltd Shaped nonwoven fabrics
GB2014059B (en) * 1978-01-20 1982-09-02 Martindale Protection Ltd Dust respirator
US4215682A (en) * 1978-02-06 1980-08-05 Minnesota Mining And Manufacturing Company Melt-blown fibrous electrets
ZA813133B (en) * 1980-05-14 1982-12-29 Surgikos Inc Disposable surgical face mask and method of producing it
US4319567A (en) * 1980-07-07 1982-03-16 Moldex/Metric Products, Inc. Disposable face mask
JPS5720201U (ko) * 1980-07-08 1982-02-02

Also Published As

Publication number Publication date
JPH0554353B2 (ko) 1993-08-12
AU3916485A (en) 1985-10-03
BR8501322A (pt) 1985-11-19
CA1252396A (en) 1989-04-11
DE3576047D1 (de) 1990-03-22
EP0162546B1 (en) 1990-02-14
KR930001660B1 (ko) 1993-03-08
ES540835A0 (es) 1987-05-01
JPS60215372A (ja) 1985-10-28
ES8705254A1 (es) 1987-05-01
AU572264B2 (en) 1988-05-05
US4536440A (en) 1985-08-20
ZA851265B (en) 1986-09-24
EP0162546A1 (en) 1985-11-27
MX160249A (es) 1990-01-12

Similar Documents

Publication Publication Date Title
KR850006150A (ko) 여과용 섬유 성형제품 및 그 제조방법
KR870009734A (ko) 탄성이 있는 안면용 여과마스크
US6045597A (en) Pleated filter with spacer insert
IE45118L (en) Filter medium
ES2074408T3 (es) Material filtrante.
KR100355057B1 (ko) 공기 정화 필터
US2521985A (en) Process of making fibrous units
MY107344A (en) Method for producing a nonwoven fabric with a thermally activated adhesive surface, resulting product and applications thereof.
CA2051056A1 (en) Depth filter media
MX9701420A (es) Articulo abrasivo no tejido y metodo para la elaboracion del mismo.
BR9407852A (pt) Filtro para fluido processo para a fabricaçao do mesmo e processo para a filtragem de material particulado a partir de uma corrente de fluido
JPS58136878A (ja) 接着芯地の製造方法
ATE186578T1 (de) Herstellverfahren für eine vliesstofflage aus gebundenen filamenten und so hergestellte balm
GB1524713A (en) Autogeneously bonded non-woven fibrous structure
DE60211504D1 (de) Filterelement mit gefalteten vlies aus metallfasern
KR950704114A (ko) 금속 섬유를 함유하는 다공성 소결 적층물(porous sintered laminate containing metal fibers)
KR900018587A (ko) 용융취입 비편직 와이퍼 및 그 제조 방법
KR900002923A (ko) 불투명하고 투명한, 짜여진 모양의 마무리를 지닌 지니지 않은 짜여지지 않은 직물 및 그의 제조방법
JP3516979B2 (ja) エアフィルタ用濾材
AU565659B2 (en) Bonded fabric
JPH0838834A (ja) フィルタの製造方法
JPS58124639A (ja) 多層シ−ト状成型用基材
FI991381A0 (fi) Suodatinkangas ja siitä valmistettu vaihdettava suodatinmoduli
JPH0462764B2 (ko)
CN213523930U (zh) 一种新型防护口罩

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20040304

Year of fee payment: 12

EXPY Expiration of term