WO2008016788A1 - Pleated filter with monolayer monocomponent meltspun media - Google Patents

Pleated filter with monolayer monocomponent meltspun media Download PDF

Info

Publication number
WO2008016788A1
WO2008016788A1 PCT/US2007/073882 US2007073882W WO2008016788A1 WO 2008016788 A1 WO2008016788 A1 WO 2008016788A1 US 2007073882 W US2007073882 W US 2007073882W WO 2008016788 A1 WO2008016788 A1 WO 2008016788A1
Authority
WO
WIPO (PCT)
Prior art keywords
web
fibers
process according
pleated filter
fiber
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.)
Ceased
Application number
PCT/US2007/073882
Other languages
English (en)
French (fr)
Inventor
Andrew R. Fox
John D. Stelter
Seyed A. Angadjivand
William T. Fay
Michael R. Berrigan
Douglas C. Sundet
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.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
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 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to KR1020097001977A priority Critical patent/KR101413336B1/ko
Priority to EP07813107.5A priority patent/EP2054135B1/en
Priority to CN2007800287137A priority patent/CN101495210B/zh
Priority to JP2009522932A priority patent/JP5362560B2/ja
Priority to CA2659341A priority patent/CA2659341C/en
Publication of WO2008016788A1 publication Critical patent/WO2008016788A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • 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
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1015—Folding

Definitions

  • meltblown nonwoven fibrous webs are used for a variety of purposes including filtration (e.g., flat web and pleated filters), insulation, padding and textile substitutes.
  • Patents or applications relating to nonwoven webs or their manufacture include U.S. Patent Nos. 3,981,650 (Page), 4,100,324 (Anderson), 4,118,531 (Hauser), 4,818,464 (Lau), 4,931,355 (Radwanski et al), 4,988,560 (Meyer et al), 5,227,107 (Dickenson et al), 5,273,565 (Milligan et al.), 5,382,400 (Pike et al.
  • Single-layer pleated filters products have been used in some applications.
  • residential furnace filters have been made from a single layer of ACCU AIRTM bi-component spunbond media from Kimberley Clark.
  • ACCUAIR media is insufficiently stiff for use as a single layer pleated HVAC filter intended to be subjected to the typical flow rates or pressures that may arise in commercial or industrial applications.
  • the above- mentioned Sundet et al. '226 application describes pleated furnace filters made from a single layer of meltblown fibers (e.g., polypropylene, polyester or nylon fibers), a majority of which were aligned at 90° ⁇ 20° with respect to the pleat row direction.
  • Fiberglass filtration media has also been employed as a single layer pleated filter, but fiberglass is uncharged, may have a high pressure drop, sheds glass fibers, and may be difficult to form into some shapes.
  • the invention provides in one aspect a process for making a pleated filter comprising: a) forming a monocomponent monolayer nonwoven web of continuous monocomponent polymeric fibers by meltspinning, collecting, heating and quenching the monocomponent polymeric fibers under thermal conditions sufficient to form a web of partially crystalline and partially amorphous oriented meltspun fibers of the same polymeric composition that are bonded to form a coherent and handleable web having a Gurley Stiffness of at least 100 mg and which further may be softened while retaining orientation and fiber structure, b) forming rows of pleats in the nonwoven web, and c) cutting the pleated web to a desired size and shape to form a pleated filter element comprising a self-supporting porous monocomponent monolayer matrix of fibers bonded to one
  • the term "monocomponent" when used with respect to a fiber or collection of fibers means fibers having essentially the same composition across their cross-section; monocomponent includes blends (viz., polymer alloys) or additive-containing materials, in which a continuous phase of uniform composition extends across the cross-section and over the length of the fiber.
  • the term "size" when used with respect to a fiber means the fiber diameter for a fiber having a circular cross section, or the length of the longest cross-sectional chord that may be constructed across a fiber having a non-circular cross-section.
  • the term "continuous" when used with respect to a fiber or collection of fibers means fibers having an essentially infinite aspect ratio (viz., a ratio of length to size of e.g., at least about 10,000 or more).
  • amorphous-characterized phase has experienced a kind of cleansing or reduction of morphological structure that would lead to undesirable increases in crystallinity in conventional untreated fibers during a thermal bonding operation; e.g., the variety or distribution of morphological forms has been reduced, the morphological structure simplified, and a kind of segregation of the morphological structure into more discernible amorphous-characterized and crystallite- characterized phases has occurred.
  • Heated air in the plenum is thus under an internal pressure within the plenum 103, and at the slot 109 it is further under the exhaust vacuum of the gas-withdrawal device 114.
  • a perforated plate 111 may be positioned under the collector 19 to impose a kind of back pressure or flow-restriction means that contributes to spreading of the stream 110 of heated air in a desired uniformity over the width or heated area of the collected mass 20 and be inhibited in streaming through possible lower-density portions of the collected mass.
  • Other useful flow-restriction means include screens or sintered plates.
  • the number, size and density of openings in the plate 111 may be varied in different areas to achieve desired control. Large amounts of air pass through the fiber- forming apparatus and must be disposed of as the fibers reach the collector in the region 115. Sufficient air passes through the web and collector in the region 116 to hold the web in place under the various streams of processing air. Sufficient openness is needed in the plate under the heat-treating region 117 and quenching region 118 to allow treating air to pass through the web, while sufficient resistance remains to assure that the air is more evenly distributed.
  • Additives may be added to the polymer to enhance the web's filtration performance, electret charging capability, mechanical properties, aging properties, coloration, surface properties or other characteristics of interest.
  • Gurley Stiffness may be determined using a Model 4171 E GURLEYTM Bending Resistance Tester from Gurley Precision Instruments. Rectangular 3.8 cm x 5.1 cm rectangles are die cut from the webs with the sample long side aligned with the web transverse (cross-web) direction. The samples are loaded into the Bending Resistance Tester with the sample long side in the web holding clamp. The samples are flexed in both directions, viz., with the test arm pressed against the first major sample face and then against the second major sample face, and the average of the two measurements is recorded as the stiffness in milligrams. The test is treated as a destructive test and if further measurements are needed fresh samples are employed.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)
PCT/US2007/073882 2006-07-31 2007-07-19 Pleated filter with monolayer monocomponent meltspun media Ceased WO2008016788A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020097001977A KR101413336B1 (ko) 2006-07-31 2007-07-19 단층 1성분 멜트스펀 매체를 갖는 주름 필터
EP07813107.5A EP2054135B1 (en) 2006-07-31 2007-07-19 Pleated filter with monolayer monocomponent meltspun media
CN2007800287137A CN101495210B (zh) 2006-07-31 2007-07-19 带有单层单组分熔纺介质的褶皱过滤器
JP2009522932A JP5362560B2 (ja) 2006-07-31 2007-07-19 単層単成分メルトスパン媒体を有するひだ付け加工フィルタ
CA2659341A CA2659341C (en) 2006-07-31 2007-07-19 Pleated filter with monolayer monocomponent meltspun media

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/461,296 US7947142B2 (en) 2006-07-31 2006-07-31 Pleated filter with monolayer monocomponent meltspun media
US11/461,296 2006-07-31

Publications (1)

Publication Number Publication Date
WO2008016788A1 true WO2008016788A1 (en) 2008-02-07

Family

ID=38984728

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/073882 Ceased WO2008016788A1 (en) 2006-07-31 2007-07-19 Pleated filter with monolayer monocomponent meltspun media

Country Status (7)

Country Link
US (2) US7947142B2 (enExample)
EP (1) EP2054135B1 (enExample)
JP (1) JP5362560B2 (enExample)
KR (1) KR101413336B1 (enExample)
CN (1) CN101495210B (enExample)
CA (1) CA2659341C (enExample)
WO (1) WO2008016788A1 (enExample)

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7892993B2 (en) * 2003-06-19 2011-02-22 Eastman Chemical Company Water-dispersible and multicomponent fibers from sulfopolyesters
US8513147B2 (en) * 2003-06-19 2013-08-20 Eastman Chemical Company Nonwovens produced from multicomponent fibers
US20040260034A1 (en) 2003-06-19 2004-12-23 Haile William Alston Water-dispersible fibers and fibrous articles
US9770058B2 (en) * 2006-07-17 2017-09-26 3M Innovative Properties Company Flat-fold respirator with monocomponent filtration/stiffening monolayer
US8802002B2 (en) * 2006-12-28 2014-08-12 3M Innovative Properties Company Dimensionally stable bonded nonwoven fibrous webs
US7837756B2 (en) * 2007-04-05 2010-11-23 Aaf-Mcquay Inc. Filter with ePTFE and method of forming
US8512569B2 (en) * 2007-12-31 2013-08-20 3M Innovative Properties Company Fluid filtration articles and methods of making and using the same
WO2009099592A2 (en) 2008-02-01 2009-08-13 Master Key, Llc Apparatus and method for visualization of music using note extraction
US8673040B2 (en) 2008-06-13 2014-03-18 Donaldson Company, Inc. Filter construction for use with air in-take for gas turbine and methods
US20100199406A1 (en) 2009-02-06 2010-08-12 Nike, Inc. Thermoplastic Non-Woven Textile Elements
US20100199520A1 (en) * 2009-02-06 2010-08-12 Nike, Inc. Textured Thermoplastic Non-Woven Elements
US8850719B2 (en) 2009-02-06 2014-10-07 Nike, Inc. Layered thermoplastic non-woven textile elements
US9682512B2 (en) 2009-02-06 2017-06-20 Nike, Inc. Methods of joining textiles and other elements incorporating a thermoplastic polymer material
US8906275B2 (en) 2012-05-29 2014-12-09 Nike, Inc. Textured elements incorporating non-woven textile materials and methods for manufacturing the textured elements
US8512519B2 (en) * 2009-04-24 2013-08-20 Eastman Chemical Company Sulfopolyesters for paper strength and process
RU2537617C2 (ru) 2009-06-12 2015-01-10 Кларкор Эр Филтрейшн Продактс, Инк. Система воздушного охлаждения со встроенным безмембранным фильтром и/или неразъемной рамкой для фильтра
US8162153B2 (en) * 2009-07-02 2012-04-24 3M Innovative Properties Company High loft spunbonded web
WO2011088185A2 (en) * 2010-01-18 2011-07-21 3M Innovative Properties Company Air filter with sorbent particles
WO2012012735A2 (en) * 2010-07-22 2012-01-26 Dynamic Adsorbents, Inc. Organic compound adsorbing material and process for making the same
US20120183861A1 (en) 2010-10-21 2012-07-19 Eastman Chemical Company Sulfopolyester binders
MX339180B (es) * 2010-11-08 2016-05-16 American Air Filter Co Filtro de politetrafluoroetileno expandido (eptfe) para uso farmaceutico aseptico y metodo de uso.
US9266068B2 (en) 2010-11-08 2016-02-23 American Air Filter Company, Inc. Aerosol generator for EPTFE filter testing and method of use
DE102011014202A1 (de) * 2011-03-16 2012-09-20 Sandler Ag Filtermedium für die Herstellung plissierter Filter
US8906200B2 (en) 2012-01-31 2014-12-09 Eastman Chemical Company Processes to produce short cut microfibers
US20130255103A1 (en) 2012-04-03 2013-10-03 Nike, Inc. Apparel And Other Products Incorporating A Thermoplastic Polymer Material
US9072991B2 (en) * 2012-04-24 2015-07-07 Southern Felt Company, Inc. Conductive filter media
CN105407998B (zh) 2012-12-28 2018-02-02 3M创新有限公司 包含电荷加强添加剂的驻极体料片
CA2900658A1 (en) 2013-02-15 2014-08-21 3M Innovative Properties Company System and method for making pleated filter media
US9303357B2 (en) 2013-04-19 2016-04-05 Eastman Chemical Company Paper and nonwoven articles comprising synthetic microfiber binders
DE102013008402B4 (de) * 2013-05-16 2025-07-17 Irema-Filter Gmbh Faservlies und Verfahren zur Herstellung desselben
US20140366733A1 (en) * 2013-06-18 2014-12-18 Bha Altair, Llc Filter media and method of forming the same
US20160206984A1 (en) * 2013-09-03 2016-07-21 3M Innovative Properties Company Melt-spinning process, melt-spun nonwoven fibrous webs and related filtration media
US9605126B2 (en) 2013-12-17 2017-03-28 Eastman Chemical Company Ultrafiltration process for the recovery of concentrated sulfopolyester dispersion
US9598802B2 (en) 2013-12-17 2017-03-21 Eastman Chemical Company Ultrafiltration process for producing a sulfopolyester concentrate
CN103638746B (zh) * 2013-12-17 2015-06-03 佛山市斯乐普特种材料有限公司 高效低阻纺粘非织造滤料、及其生产设备和制造方法
KR101837641B1 (ko) 2013-12-17 2018-03-12 쓰리엠 이노베이티브 프로퍼티즈 컴파니 공기질 표시기
WO2015143326A1 (en) 2014-03-21 2015-09-24 3M Innovative Properties Company Refillable air filter assembly
US20170241192A1 (en) * 2014-08-25 2017-08-24 3M Innovative Properties Company Adjustable air filter
WO2016033097A1 (en) * 2014-08-26 2016-03-03 3M Innovative Properties Company Spunbonded web comprising polylactic acid fibers
DE102014117506A1 (de) 2014-11-28 2016-06-02 Filta Co., Ltd Filtermedium mit großem Faltenabstand
EP3250307A4 (en) 2015-01-29 2018-09-05 3M Innovative Properties Company Conformable pleated air filter with bridging filaments
US10406472B2 (en) 2015-03-12 2019-09-10 3M Innovative Properties Company Collapsible air filter
US10828587B2 (en) 2015-04-17 2020-11-10 Hollingsworth & Vose Company Stable filter media including nanofibers
US11278833B2 (en) 2015-08-17 2022-03-22 Parker-Hamilton Corporation Filter media packs, methods of making, and ultrasonic cutting or welding
EP3777989B1 (en) 2015-08-17 2025-06-04 Parker-Hannifin Corporation Filter media packs, methods of making and filter media presses
US10940416B2 (en) 2015-09-24 2021-03-09 3M Innovative Properties Company Air filter devices with gap sealing unit
US10981099B2 (en) 2015-09-24 2021-04-20 3M Innovative Properties Company Expandable air filters
CA2928138A1 (en) 2015-11-10 2017-05-10 3M Innovative Properties Company Air filter use indicators
US11014070B2 (en) 2016-03-14 2021-05-25 3M Innovative Properties Company Composite granules including polymeric sorbent for reactive gases
US10960341B2 (en) 2016-03-14 2021-03-30 3M Innovative Properties Company Air filters comprising polymeric sorbents for aldehydes
CN108778455B (zh) 2016-03-14 2021-12-14 3M创新有限公司 包含用于反应性气体的聚合吸附剂的空气过滤器
CA3018596C (en) 2016-03-24 2024-01-23 3M Innovative Properties Company Room air purifier with rfid reader
WO2017213926A1 (en) 2016-06-06 2017-12-14 3M Innovative Properties Company Channel-framed, pleated air filter with bridging filaments
JP2019524437A (ja) 2016-08-05 2019-09-05 スリーエム イノベイティブ プロパティズ カンパニー 不動態化されたフィルタ寿命インジケータを有する空気フィルタ
EP3503992A4 (en) * 2016-08-26 2020-01-22 3M Innovative Properties Company IMPROVED ROOM AIR CLEANER AND FILTER MEDIA
KR20190077528A (ko) 2016-11-14 2019-07-03 쓰리엠 이노베이티브 프로퍼티즈 캄파니 금속-함유 중합체 수착제를 포함하는 공기 필터
CN109963635B (zh) 2016-11-17 2021-06-18 3M创新有限公司 具有视觉过滤器寿命指示器区和载有吸附剂的视觉基准区的空气过滤器
US10898838B2 (en) 2016-12-15 2021-01-26 Hollingsworth & Vose Company Filter media including adhesives
US10543441B2 (en) 2016-12-15 2020-01-28 Hollingsworth & Vose Company Filter media including adhesives and/or oleophobic properties
WO2018183481A1 (en) * 2017-03-28 2018-10-04 Hollingsworth & Vose Company Filter media including adhesives and/or oleophobic properties
CA3060405C (en) 2017-04-18 2020-06-16 3M Innovative Properties Company Air filter media with post-pleat-deposited sorbent particles
JP7092124B2 (ja) * 2017-06-09 2022-06-28 東洋紡株式会社 長繊維不織布およびそれを用いたフィルター補強材
WO2018229604A2 (en) 2017-06-16 2018-12-20 3M Innovative Properties Company Air filters comprising polymeric sorbents for aldehydes
CN108940336B (zh) * 2018-07-03 2020-06-12 山西大学 一种含氮掺杂的钴基碳纳米催化剂及其制备方法和应用
US11452959B2 (en) * 2018-11-30 2022-09-27 Hollingsworth & Vose Company Filter media having a fine pore size distribution
IT201800020083A1 (it) * 2018-12-18 2020-06-18 Gd Spa Macchina per la realizzazione di spezzoni tubolari dell’industria del tabacco
WO2021028851A1 (en) * 2019-08-13 2021-02-18 3M Innovative Properties Company Spunbonded air-filtration web
US20220266181A1 (en) * 2019-08-13 2022-08-25 3M Innovative Properties Company Spunbonded Air-Filtration Web
CN111389064B (zh) * 2020-03-31 2021-11-30 郑州市水利工程监理中心 一种用于水利水电工程的过滤系统
CN111534935B (zh) * 2020-05-07 2022-06-10 新石器科技有限公司 一种接枝共聚聚丙烯口罩制备装置及其使用方法
CN115768543A (zh) 2020-07-08 2023-03-07 3M创新有限公司 包括纺粘预过滤器的褶皱型过滤组件
WO2022036672A1 (en) * 2020-08-21 2022-02-24 Dow Global Technologies Llc Meltblown nonwovens having high volume resistivity and articles thereof
WO2022172222A1 (en) 2021-02-12 2022-08-18 3M Innovative Properties Company Sample collection device and system
KR20230164096A (ko) 2021-04-02 2023-12-01 쓰리엠 이노베이티브 프로퍼티즈 캄파니 샘플 수집 장치 및 방법
WO2022214884A1 (en) 2021-04-06 2022-10-13 3M Innovative Properties Company Sample collection devices, systems, and methods
CN114717750A (zh) * 2021-04-21 2022-07-08 武汉纺织大学 一种具有三维阵列微凸结构的熔喷布制备方法及制备设备
US20240237971A1 (en) 2021-05-21 2024-07-18 3M Innovative Properties Company Sample collection device and system
EP4340737A1 (en) 2021-05-21 2024-03-27 3M Innovative Properties Company Pop-up sample collection device and system
WO2024214065A1 (en) 2023-04-13 2024-10-17 3M Innovative Properties Company Filter media for filtration devices and methods of making and using the same

Citations (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3981650A (en) 1975-01-16 1976-09-21 Beloit Corporation Melt blowing intermixed filaments of two different polymers
US4100324A (en) 1974-03-26 1978-07-11 Kimberly-Clark Corporation Nonwoven fabric and method of producing same
US4118531A (en) 1976-08-02 1978-10-03 Minnesota Mining And Manufacturing Company Web of blended microfibers and crimped bulking fibers
US4547950A (en) 1984-05-29 1985-10-22 Honeywell Inc. Method of spacing the folds of a folded filter media
US4588537A (en) 1983-02-04 1986-05-13 Minnesota Mining And Manufacturing Company Method for manufacturing an electret filter medium
US4818464A (en) 1984-08-30 1989-04-04 Kimberly-Clark Corporation Extrusion process using a central air jet
EP0322136A2 (en) 1987-12-21 1989-06-28 Minnesota Mining And Manufacturing Company Oriented melt-blown fibers, processes for making such fibers, and webs made from such fibers
US4931355A (en) 1988-03-18 1990-06-05 Radwanski Fred R Nonwoven fibrous hydraulically entangled non-elastic coform material and method of formation thereof
US5227107A (en) 1990-08-07 1993-07-13 Kimberly-Clark Corporation Process and apparatus for forming nonwovens within a forming chamber
US5240479A (en) 1991-05-17 1993-08-31 Donaldson Company, Inc. Pleated filter media having a continuous bead of adhesive between layers of filtering material
US5273565A (en) 1992-10-14 1993-12-28 Exxon Chemical Patents Inc. Meltblown fabric
US5382400A (en) 1992-08-21 1995-01-17 Kimberly-Clark Corporation Nonwoven multicomponent polymeric fabric and method for making same
WO1995013856A1 (en) 1993-11-16 1995-05-26 Kimberly-Clark Corporation Nonwoven filter media
US5496507A (en) 1993-08-17 1996-03-05 Minnesota Mining And Manufacturing Company Method of charging electret filter media
US5679042A (en) 1996-04-25 1997-10-21 Kimberly-Clark Worldwide, Inc. Nonwoven fabric having a pore size gradient and method of making same
US5679379A (en) 1995-01-09 1997-10-21 Fabbricante; Anthony S. Disposable extrusion apparatus with pressure balancing modular die units for the production of nonwoven webs
US5695376A (en) 1994-09-09 1997-12-09 Kimberly-Clark Worldwide, Inc. Thermoformable barrier nonwoven laminate
US5707468A (en) 1994-12-22 1998-01-13 Kimberly-Clark Worldwide, Inc. Compaction-free method of increasing the integrity of a nonwoven web
US5709735A (en) 1995-10-20 1998-01-20 Kimberly-Clark Worldwide, Inc. High stiffness nonwoven filter medium
US5721180A (en) 1995-12-22 1998-02-24 Pike; Richard Daniel Laminate filter media
US5820645A (en) 1997-05-23 1998-10-13 Reemay, Inc. Pleatable nonwoven composite article for gas filter media
US5877098A (en) 1996-01-24 1999-03-02 Japan Vilene Company, Ltd Abrasive sheet made of very fine and ultrafine fibers
US5902540A (en) 1996-10-08 1999-05-11 Illinois Tool Works Inc. Meltblowing method and apparatus
US5904298A (en) 1996-10-08 1999-05-18 Illinois Tool Works Inc. Meltblowing method and system
US5908598A (en) 1995-08-14 1999-06-01 Minnesota Mining And Manufacturing Company Fibrous webs having enhanced electret properties
US5993543A (en) 1995-12-15 1999-11-30 Masaki Aoki Et Al. Method of producing plasma display panel with protective layer of an alkaline earth oxide
US6165244A (en) 1999-03-13 2000-12-26 Aaf International, Inc. Filter media with fluid stream positioned fibers
US6176955B1 (en) 1998-07-29 2001-01-23 Kimberly-Clark Worldwide, Inc. Method for heating nonwoven webs
US6183670B1 (en) 1997-09-23 2001-02-06 Leonard Torobin Method and apparatus for producing high efficiency fibrous media incorporating discontinuous sub-micron diameter fibers, and web media formed thereby
JP2001049560A (ja) 1999-08-03 2001-02-20 Nissan Motor Co Ltd 繊維クッション体の成形方法、並びに繊維クッション体および繊維クッション体を用いた車両用シート
US6230901B1 (en) 1993-07-16 2001-05-15 Chisso Corporation Microfine fiber product and process for producing the same
USD449100S1 (en) 2000-08-25 2001-10-09 3M Innovative Properties Company HVAC filter
US6319865B1 (en) 1999-09-02 2001-11-20 Tonen Tapyrus Co., Ltd. Melt-blown non-woven fabric, and nozzle piece for producing the same
US6397458B1 (en) 1998-07-02 2002-06-04 3M Innovative Properties Company Method of making an electret article by transferring fluorine to the article from a gaseous phase
JP2002180331A (ja) 2000-12-14 2002-06-26 Chisso Corp 熱接着性複合繊維、その製造方法およびそれを用いた繊維成形体
WO2002052071A2 (en) 2000-12-22 2002-07-04 Kimberly-Clark Worldwide, Inc. Nonwovens with improved control of filament distribution
JP2002348737A (ja) 2001-05-25 2002-12-04 Chisso Corp 熱融着性複合繊維及びこれを用いた繊維成形体
US6521011B1 (en) 1999-07-15 2003-02-18 3M Innovative Properties Company Self-supporting pleated filter and method of making same
US20030082360A1 (en) 2001-08-07 2003-05-01 The Procter & Gamble Company Fibers and webs capable of high speed solid state deformation
US20030134515A1 (en) 2001-12-14 2003-07-17 3M Innovative Properties Company Plasma fluorination treatment of porous materials
US6607624B2 (en) 2000-11-20 2003-08-19 3M Innovative Properties Company Fiber-forming process
US6667254B1 (en) 2000-11-20 2003-12-23 3M Innovative Properties Company Fibrous nonwoven webs
US20040077247A1 (en) 2002-10-22 2004-04-22 Schmidt Richard J. Lofty spunbond nonwoven laminate
US20040097155A1 (en) 2002-11-15 2004-05-20 3M Innovative Properties Company Fibrous nonwoven web
US6740137B2 (en) 2002-06-14 2004-05-25 3M Innovative Properties Company Collapsible pleated filter element
US6858297B1 (en) 2004-04-05 2005-02-22 3M Innovative Properties Company Aligned fiber web
US6916752B2 (en) 2002-05-20 2005-07-12 3M Innovative Properties Company Bondable, oriented, nonwoven fibrous webs and methods for making them
US20050217226A1 (en) 2004-04-05 2005-10-06 3M Innovative Properties Company Pleated aligned web filter
US20080038976A1 (en) 2006-07-31 2008-02-14 Berrigan Michael R Bonded nonwoven fibrous webs comprising softenable oriented semicrystalline polymeric fibers and apparatus and methods for preparing such webs

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2530499C3 (de) * 1975-07-09 1978-05-24 Akzo Gmbh, 5600 Wuppertal Mattenbahn und Verfahren zu ihrer Herstellung
US5993943A (en) 1987-12-21 1999-11-30 3M Innovative Properties Company Oriented melt-blown fibers, processes for making such fibers and webs made from such fibers
JP3432340B2 (ja) * 1995-10-03 2003-08-04 ユニチカ株式会社 生分解性成形用長繊維不織布およびその製造方法
JPH09273063A (ja) * 1996-04-05 1997-10-21 Toray Ind Inc 不織布およびタフテッドカーペット用一次基布およびタフテッドカーペットおよびフィルター基材およびフィルター
BE1010654A3 (fr) * 1996-09-30 1998-11-03 Solvay Procede de mise en oeuvre d'une matiere thermoplastique semi-cristalline.
US6315806B1 (en) * 1997-09-23 2001-11-13 Leonard Torobin Method and apparatus for producing high efficiency fibrous media incorporating discontinuous sub-micron diameter fibers, and web media formed thereby
US6238466B1 (en) * 1997-10-01 2001-05-29 3M Innovative Properties Company Electret articles and filters with increased oily mist resistance
WO2002055782A2 (en) * 2000-11-20 2002-07-18 3M Innovative Properties Company Fiber-forming process
US20030114066A1 (en) * 2001-12-13 2003-06-19 Clark Darryl Franklin Uniform distribution of absorbents in a thermoplastic web
US8129297B2 (en) * 2002-07-29 2012-03-06 E. I. Du Pont De Nemours And Company Method and apparatus for heating nonwoven webs
CA2499065C (en) * 2002-09-17 2011-05-17 E. I. Du Pont De Nemours And Company Extremely high liquid barrier fabrics
JP2005113278A (ja) 2003-10-03 2005-04-28 Toray Ind Inc 生分解性不織布およびそれを用いてなるフィルター
US20050148266A1 (en) * 2003-12-30 2005-07-07 Myers David L. Self-supporting pleated electret filter media
US7235115B2 (en) * 2004-07-09 2007-06-26 3M Innovative Properties Company Method of forming self-supporting pleated filter media
JP4800598B2 (ja) * 2004-07-30 2011-10-26 ダイワボウホールディングス株式会社 プリーツ折り不織布からなるエレクトレットフィルター材の製造方法及びこれを用いたフィルター材
US7438777B2 (en) * 2005-04-01 2008-10-21 North Carolina State University Lightweight high-tensile, high-tear strength bicomponent nonwoven fabrics

Patent Citations (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100324A (en) 1974-03-26 1978-07-11 Kimberly-Clark Corporation Nonwoven fabric and method of producing same
US3981650A (en) 1975-01-16 1976-09-21 Beloit Corporation Melt blowing intermixed filaments of two different polymers
US4118531A (en) 1976-08-02 1978-10-03 Minnesota Mining And Manufacturing Company Web of blended microfibers and crimped bulking fibers
US4588537A (en) 1983-02-04 1986-05-13 Minnesota Mining And Manufacturing Company Method for manufacturing an electret filter medium
US4547950A (en) 1984-05-29 1985-10-22 Honeywell Inc. Method of spacing the folds of a folded filter media
US4818464A (en) 1984-08-30 1989-04-04 Kimberly-Clark Corporation Extrusion process using a central air jet
EP0322136A2 (en) 1987-12-21 1989-06-28 Minnesota Mining And Manufacturing Company Oriented melt-blown fibers, processes for making such fibers, and webs made from such fibers
US4988560A (en) 1987-12-21 1991-01-29 Minnesota Mining And Manufacturing Company Oriented melt-blown fibers, processes for making such fibers, and webs made from such fibers
US4931355A (en) 1988-03-18 1990-06-05 Radwanski Fred R Nonwoven fibrous hydraulically entangled non-elastic coform material and method of formation thereof
US5227107A (en) 1990-08-07 1993-07-13 Kimberly-Clark Corporation Process and apparatus for forming nonwovens within a forming chamber
US5240479A (en) 1991-05-17 1993-08-31 Donaldson Company, Inc. Pleated filter media having a continuous bead of adhesive between layers of filtering material
US5382400A (en) 1992-08-21 1995-01-17 Kimberly-Clark Corporation Nonwoven multicomponent polymeric fabric and method for making same
US5273565A (en) 1992-10-14 1993-12-28 Exxon Chemical Patents Inc. Meltblown fabric
US6230901B1 (en) 1993-07-16 2001-05-15 Chisso Corporation Microfine fiber product and process for producing the same
US5496507A (en) 1993-08-17 1996-03-05 Minnesota Mining And Manufacturing Company Method of charging electret filter media
WO1995013856A1 (en) 1993-11-16 1995-05-26 Kimberly-Clark Corporation Nonwoven filter media
US5695376A (en) 1994-09-09 1997-12-09 Kimberly-Clark Worldwide, Inc. Thermoformable barrier nonwoven laminate
US5707468A (en) 1994-12-22 1998-01-13 Kimberly-Clark Worldwide, Inc. Compaction-free method of increasing the integrity of a nonwoven web
US5679379A (en) 1995-01-09 1997-10-21 Fabbricante; Anthony S. Disposable extrusion apparatus with pressure balancing modular die units for the production of nonwoven webs
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
US5993543A (en) 1995-12-15 1999-11-30 Masaki Aoki Et Al. Method of producing plasma display panel with protective layer of an alkaline earth oxide
US5721180A (en) 1995-12-22 1998-02-24 Pike; Richard Daniel Laminate filter media
US5877098A (en) 1996-01-24 1999-03-02 Japan Vilene Company, Ltd Abrasive sheet made of very fine and ultrafine fibers
US5679042A (en) 1996-04-25 1997-10-21 Kimberly-Clark Worldwide, Inc. Nonwoven fabric having a pore size gradient and method of making same
US5902540A (en) 1996-10-08 1999-05-11 Illinois Tool Works Inc. Meltblowing method and apparatus
US5904298A (en) 1996-10-08 1999-05-18 Illinois Tool Works Inc. Meltblowing method and system
US5820645A (en) 1997-05-23 1998-10-13 Reemay, Inc. Pleatable nonwoven composite article for gas filter media
US6183670B1 (en) 1997-09-23 2001-02-06 Leonard Torobin Method and apparatus for producing high efficiency fibrous media incorporating discontinuous sub-micron diameter fibers, and web media formed thereby
US6397458B1 (en) 1998-07-02 2002-06-04 3M Innovative Properties Company Method of making an electret article by transferring fluorine to the article from a gaseous phase
US6562112B2 (en) 1998-07-02 2003-05-13 3M Innovative Properties Company Fluorinated electret
US6398847B1 (en) 1998-07-02 2002-06-04 3M Innovative Properties Company Method of removing contaminants from an aerosol using a new electret article
US6409806B1 (en) 1998-07-02 2002-06-25 3M Innovative Properties Company Fluorinated electret
US6176955B1 (en) 1998-07-29 2001-01-23 Kimberly-Clark Worldwide, Inc. Method for heating nonwoven webs
US6165244A (en) 1999-03-13 2000-12-26 Aaf International, Inc. Filter media with fluid stream positioned fibers
US20030089090A1 (en) 1999-07-15 2003-05-15 3M Innovative Properties Company Method of making self-supporting pleated filter
US20030089091A1 (en) 1999-07-15 2003-05-15 3M Innovative Properties Company Self-supporting pleated filter
US6521011B1 (en) 1999-07-15 2003-02-18 3M Innovative Properties Company Self-supporting pleated filter and method of making same
JP2001049560A (ja) 1999-08-03 2001-02-20 Nissan Motor Co Ltd 繊維クッション体の成形方法、並びに繊維クッション体および繊維クッション体を用いた車両用シート
US6319865B1 (en) 1999-09-02 2001-11-20 Tonen Tapyrus Co., Ltd. Melt-blown non-woven fabric, and nozzle piece for producing the same
USD449100S1 (en) 2000-08-25 2001-10-09 3M Innovative Properties Company HVAC filter
US6607624B2 (en) 2000-11-20 2003-08-19 3M Innovative Properties Company Fiber-forming process
US6667254B1 (en) 2000-11-20 2003-12-23 3M Innovative Properties Company Fibrous nonwoven webs
JP2002180331A (ja) 2000-12-14 2002-06-26 Chisso Corp 熱接着性複合繊維、その製造方法およびそれを用いた繊維成形体
WO2002052071A2 (en) 2000-12-22 2002-07-04 Kimberly-Clark Worldwide, Inc. Nonwovens with improved control of filament distribution
JP2002348737A (ja) 2001-05-25 2002-12-04 Chisso Corp 熱融着性複合繊維及びこれを用いた繊維成形体
US20030082360A1 (en) 2001-08-07 2003-05-01 The Procter & Gamble Company Fibers and webs capable of high speed solid state deformation
US20030134515A1 (en) 2001-12-14 2003-07-17 3M Innovative Properties Company Plasma fluorination treatment of porous materials
US6916752B2 (en) 2002-05-20 2005-07-12 3M Innovative Properties Company Bondable, oriented, nonwoven fibrous webs and methods for making them
US6740137B2 (en) 2002-06-14 2004-05-25 3M Innovative Properties Company Collapsible pleated filter element
US20040077247A1 (en) 2002-10-22 2004-04-22 Schmidt Richard J. Lofty spunbond nonwoven laminate
US20040097155A1 (en) 2002-11-15 2004-05-20 3M Innovative Properties Company Fibrous nonwoven web
US6858297B1 (en) 2004-04-05 2005-02-22 3M Innovative Properties Company Aligned fiber web
US20050217226A1 (en) 2004-04-05 2005-10-06 3M Innovative Properties Company Pleated aligned web filter
US20080038976A1 (en) 2006-07-31 2008-02-14 Berrigan Michael R Bonded nonwoven fibrous webs comprising softenable oriented semicrystalline polymeric fibers and apparatus and methods for preparing such webs

Also Published As

Publication number Publication date
CN101495210A (zh) 2009-07-29
US20080022642A1 (en) 2008-01-31
US8506669B2 (en) 2013-08-13
CA2659341C (en) 2014-09-16
EP2054135A4 (en) 2011-10-05
US7947142B2 (en) 2011-05-24
CN101495210B (zh) 2012-01-04
JP5362560B2 (ja) 2013-12-11
EP2054135A1 (en) 2009-05-06
EP2054135B1 (en) 2016-05-18
JP2009545439A (ja) 2009-12-24
CA2659341A1 (en) 2008-02-07
KR101413336B1 (ko) 2014-06-27
KR20090038441A (ko) 2009-04-20
US20110185903A1 (en) 2011-08-04

Similar Documents

Publication Publication Date Title
CA2659341C (en) Pleated filter with monolayer monocomponent meltspun media
CA2659356C (en) Pleated filter with bimodal monolayer monocomponent media
US20160206984A1 (en) Melt-spinning process, melt-spun nonwoven fibrous webs and related filtration media
KR101453578B1 (ko) 성형된 1성분 단층 호흡기
US7807591B2 (en) Fibrous web comprising microfibers dispersed among bonded meltspun fibers

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200780028713.7

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07813107

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2659341

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2009522932

Country of ref document: JP

Ref document number: 1020097001977

Country of ref document: KR

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2007813107

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: RU