GB1481666A - Low pressure drop filter medium - Google Patents
Low pressure drop filter mediumInfo
- Publication number
- GB1481666A GB1481666A GB3884/75A GB388475A GB1481666A GB 1481666 A GB1481666 A GB 1481666A GB 3884/75 A GB3884/75 A GB 3884/75A GB 388475 A GB388475 A GB 388475A GB 1481666 A GB1481666 A GB 1481666A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- filter medium
- pressure drop
- jan
- less
- 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
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
- 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
-
- 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
-
- 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
- B32B5/022—Non-woven fabric
-
- 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
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/026—Porous
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Filtering Materials (AREA)
- Nonwoven Fabrics (AREA)
Abstract
1481666 Air filters MINNESOTA MINING & MFG CO 29 Jan 1975 [30 Jan 1974] 3884/75 Heading BIT [Also in Division B5] Room and respiratory air filters comprise a filter medium wherein porous webs, e.g. compacted non-woven polyethylene terephthalate fabrics, sandwich one or more layers of micro fibres of average diameter less than 0.5 micrometres (see Div B4-5). In a room air filter, a blower moves air from an inlet to an outlet and the filter medium is disposed across the air path, e.g. as a web which is advanced at 2 inch/day or less from a supply roll to a takeup roll. The microfibres may be air-attenuated solution-blown polymer fibres (suitable polymers being specified) and the layer(s) thereof may be formed in situ on one of the porous webs, may weigh less than 0.06 lb/yd<SP>2</SP>, and are generally non-self-supporting. Relationships between face velocity, particle penetration and pressure drop are specified.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43788074A | 1974-01-30 | 1974-01-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1481666A true GB1481666A (en) | 1977-08-03 |
Family
ID=23738304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3884/75A Expired GB1481666A (en) | 1974-01-30 | 1975-01-29 | Low pressure drop filter medium |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS6036807B2 (en) |
CA (1) | CA1044615A (en) |
DE (1) | DE2503615C2 (en) |
FR (1) | FR2258888B1 (en) |
GB (1) | GB1481666A (en) |
IT (1) | IT1029389B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2126162A (en) * | 1982-09-02 | 1984-03-21 | Kimberly Clark Co | Nonwoven laminate wiper |
GB2235652A (en) * | 1989-07-19 | 1991-03-13 | Alcantara Spa | Composite article |
WO2007118640A2 (en) * | 2006-04-13 | 2007-10-25 | Eurofilters N.V. | Filter bag for a vacuum cleaner, and use thereof |
CN103760065A (en) * | 2013-06-28 | 2014-04-30 | 中国石油化工股份有限公司 | Test method and test system for polymer solution flow effective apparent viscosity |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4188197A (en) * | 1975-09-25 | 1980-02-12 | Dennison Manufacturing Company | Particulate filtering |
IT1077372B (en) * | 1977-03-29 | 1985-05-04 | Montedison Spa | REFINEMENTS IN MIXTURE FILTERS OF SYNTHETIC FIBERS WITH CELLULOSE |
JPS54112071A (en) * | 1978-02-22 | 1979-09-01 | Mitsui Petrochemical Ind | Method of filtering liquid |
JPS6056825B2 (en) * | 1978-05-01 | 1985-12-12 | 東亜燃料工業株式会社 | Manufacturing method of nonwoven fabric |
JPS6022100B2 (en) * | 1978-05-01 | 1985-05-31 | 東亜燃料工業株式会社 | Manufacturing method of nonwoven fabric |
JPS5624013A (en) * | 1979-05-04 | 1981-03-07 | Nitta Kk | Structure of air filter element |
US4548628A (en) * | 1982-04-26 | 1985-10-22 | Asahi Kasei Kogyo Kabushiki Kaisha | Filter medium and process for preparing same |
DE3428359A1 (en) * | 1984-08-01 | 1986-02-06 | Düpro AG, Romanshorn | Air-cleaning device |
DE3517923A1 (en) * | 1985-05-18 | 1986-11-27 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | Method of producing naturally scented breathing air |
US4714647A (en) * | 1986-05-02 | 1987-12-22 | Kimberly-Clark Corporation | Melt-blown material with depth fiber size gradient |
JPH0729010B2 (en) * | 1986-12-16 | 1995-04-05 | 富士通株式会社 | Electrophotographic device |
DE3731575A1 (en) * | 1987-09-19 | 1989-03-30 | Freudenberg Carl Fa | FILTER PACK |
DE3812849C3 (en) * | 1988-04-18 | 1996-03-21 | Gessner & Co Gmbh | Dust filter bag, its manufacture and use |
JPH02289161A (en) * | 1989-08-03 | 1990-11-29 | Toray Ind Inc | Production of laminated nonwoven fabric sheet for microfilter |
JPH0493020U (en) * | 1989-12-25 | 1992-08-13 | ||
DE4134222C2 (en) * | 1991-10-16 | 2002-09-19 | Mhb Filtration Gmbh & Co Kg | Filters for passenger compartments |
DE4212112A1 (en) * | 1992-04-10 | 1993-10-14 | Sandler C H Gmbh | Multi-layer filter material |
US5350443B2 (en) * | 1993-04-19 | 1999-08-10 | Von Hasso Bluecher | Filter sheet material for passenger cabins in motor vehicles |
DE19605863A1 (en) * | 1996-02-16 | 1997-08-21 | Reemtsma H F & Ph | Cigarette filter |
AU2005254959B2 (en) * | 2004-06-09 | 2010-11-04 | Pathogen Removal And Diagnostic Technologies Inc. | Particles embedded ina porous substrate for removing target analyte from a sample |
US20070074628A1 (en) * | 2005-09-30 | 2007-04-05 | Jones David C | Coalescing filtration medium and process |
DE102016125182A1 (en) * | 2016-12-21 | 2018-06-21 | Groz-Beckert Kg | Process for producing fibers and nonwovens by solution blow spinning and nonwoven fabric made therewith |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5316696Y2 (en) * | 1971-12-03 | 1978-05-02 |
-
1975
- 1975-01-07 CA CA217,494A patent/CA1044615A/en not_active Expired
- 1975-01-29 GB GB3884/75A patent/GB1481666A/en not_active Expired
- 1975-01-29 JP JP50012271A patent/JPS6036807B2/en not_active Expired
- 1975-01-29 DE DE2503615A patent/DE2503615C2/en not_active Expired
- 1975-01-29 IT IT47904/75A patent/IT1029389B/en active
- 1975-01-29 FR FR7502707A patent/FR2258888B1/fr not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2126162A (en) * | 1982-09-02 | 1984-03-21 | Kimberly Clark Co | Nonwoven laminate wiper |
GB2235652A (en) * | 1989-07-19 | 1991-03-13 | Alcantara Spa | Composite article |
GB2235652B (en) * | 1989-07-19 | 1993-01-27 | Alcantara Spa | Composite article |
WO2007118640A2 (en) * | 2006-04-13 | 2007-10-25 | Eurofilters N.V. | Filter bag for a vacuum cleaner, and use thereof |
WO2007118640A3 (en) * | 2006-04-13 | 2007-12-06 | Eurofilters Nv | Filter bag for a vacuum cleaner, and use thereof |
AU2007237471B2 (en) * | 2006-04-13 | 2011-08-18 | Eurofilters N.V. | Filter bag for a vacuum cleaner, and use thereof |
US8152879B2 (en) | 2006-04-13 | 2012-04-10 | Eurofilters N.V. | Filter bag for a vacuum cleaner and also use thereof |
CN101421015B (en) * | 2006-04-13 | 2012-11-28 | 欧洲过滤袋公司 | Filter bag for a vacuum cleaner, and use thereof |
CN103760065A (en) * | 2013-06-28 | 2014-04-30 | 中国石油化工股份有限公司 | Test method and test system for polymer solution flow effective apparent viscosity |
CN103760065B (en) * | 2013-06-28 | 2016-01-06 | 中国石油化工股份有限公司 | A kind of method of testing of polymer solution flow effective apparent viscosity and test macro thereof |
Also Published As
Publication number | Publication date |
---|---|
FR2258888A1 (en) | 1975-08-22 |
JPS6036807B2 (en) | 1985-08-22 |
CA1044615A (en) | 1978-12-19 |
JPS50108677A (en) | 1975-08-27 |
FR2258888B1 (en) | 1981-12-11 |
DE2503615A1 (en) | 1975-07-31 |
DE2503615C2 (en) | 1986-10-23 |
IT1029389B (en) | 1979-03-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |