WO2003000382A1 - Element filtrant - Google Patents
Element filtrant Download PDFInfo
- Publication number
- WO2003000382A1 WO2003000382A1 PCT/JP2002/006196 JP0206196W WO03000382A1 WO 2003000382 A1 WO2003000382 A1 WO 2003000382A1 JP 0206196 W JP0206196 W JP 0206196W WO 03000382 A1 WO03000382 A1 WO 03000382A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- layer
- deodorizing
- material according
- filter material
- Prior art date
Links
Classifications
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/01—Deodorant compositions
- A61L9/014—Deodorant compositions containing sorbent material, e.g. activated carbon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
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- 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
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- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0038—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions with means for influencing the odor, e.g. deodorizing substances
-
- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/045—Deodorising additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0471—Surface coating material
- B01D2239/0478—Surface coating material on a layer of the filter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0618—Non-woven
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0622—Melt-blown
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0627—Spun-bonded
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0668—The layers being joined by heat or melt-bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0681—The layers being joined by gluing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/069—Special geometry of layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1233—Fibre diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1291—Other parameters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2275/10—Multiple layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H2003/0691—Adsorption filters, e.g. activated carbon
Definitions
- the present invention relates to a filter having both a deodorizing function and a dust collecting function.More specifically, the filter has excellent deodorizing performance and low pressure loss, and also has excellent fine soot collection performance, and further performance degradation due to clogging. It is related with the filter material which is hard to generate. Background art
- air purifiers when introducing outside air into the passenger compartment are required to simultaneously remove dust and gas components.
- air conditioners when introducing outside air into the passenger compartment are required to simultaneously remove dust and gas components.
- air purification filters cabin filters
- the fuel cell is expected to have great potential as a global warming countermeasure technology.
- the atmosphere is used to supply oxygen to the oxygen electrode.
- the atmosphere contains sulfur compounds and various organic compounds that reduce the catalytic performance of the fuel cell, the fuel cell
- it is necessary to remove the impurities in the outside air and introduce as pure air as possible. For this reason, advanced deodorization (gas removal) performance and dust collection performance are required.
- auxiliary equipment such as a blower, and it is required to have high deodorizing dust collection performance and low pressure loss.
- fiber filters such as propylene, polyester, polyamide, glass fiber, etc. are generally used as means for collecting relatively fine dust of 10 m or less (hereinafter referred to as “fine dust”).
- fine dust as its manufacturing method
- the polymer is formed into a non-woven fabric by the method or the melt blow method, Japanese Patent Publication No. 5 6-4 7 2 99, Japanese Patent Publication No. 5 7-1 4 4 6 7, Japanese Patent Publication No. 4 1 2 1 3 3 3 No. 5, Japanese Patent Publication No. 5-1 5 4 85, Japanese Patent Application Laid-Open No. 7-2 2 7 5 1 0, Japanese Patent Application Laid-Open No. 6 1-4 6 2 1 5
- a resin such as polypropylene or polyethylene is formed into a net shape, or a three-dimensional net shape.
- a filter made of a polyurethane foam without a film having a chemical structure is known.
- the former fibrous filter has the disadvantage of being clogged and clogged, although its fine dust collecting ability is excellent, and its performance deteriorates early.
- the latter filter has the disadvantage of collecting fine dust. Insufficient ability.
- polyurethane foam with a three-dimensional network structure without cell membranes is used as a deodorizing filter substrate as a filter material for dust collection.
- a filter material that has been formed into a shape has also been proposed. According to this filter material, it is possible to obtain a filter that has excellent dust collection performance and is difficult to clog, and also has a deodorizing function. Even if only one material is used, if the emphasis is placed on the performance of collecting fine soot, the initial pressure loss increases, so there is a problem that the amount of deodorant attached must be reduced. Disclosure of the invention
- the present invention has been made in view of the above circumstances, and can collect both coarse dust and fine dust, and can secure a sufficient amount of deodorant to obtain good deodorization performance. At the same time, it is an object of the present invention to provide a high-performance filter material that is less likely to be clogged and that can achieve these performances in a balanced manner under low pressure loss.
- the inventor forms a deodorizing filter layer by attaching a deodorizing agent to the surface of the skeleton of the net-like filter base material, By stacking a single dust collection filter on one side and forming the entire filter into a pleated shape, it is difficult to achieve with conventional technology.
- the present invention has been completed by finding that a high-performance filter material having improved performance, coarse dust collection performance, clogging prevention performance and deodorization performance in a well-balanced manner can be obtained.
- the present invention has a deodorizing filter layer in which a deodorizing agent is attached to the surface of the skeleton of a net-like filter base material, and a dust collecting function laminated on both the front and back surfaces of the deodorizing filter layer.
- the present invention provides a filter material comprising a dust collecting film having a pleated shape.
- deodorization does not necessarily mean removal of only odor components, but also includes removal of gas components other than odor components.
- FIG. 1 is a partially enlarged perspective view showing a filter material according to an embodiment of the present invention.
- the filter material of the present invention has a dust collecting filter layer 2 a, 2 b laminated on both the front and back surfaces of the deodorizing filter layer 1 or either one side (front and back surfaces in FIG. 1). It is molded into a pre-shaped shape.
- the above-mentioned deodorizing filter layer 1 uses a net-like filter base body that is rich in air permeability, can be attached with a large amount of deodorizing agent, and can maintain sufficient pleat strength after pleating processing.
- the deodorizing filter layer 1 is formed by attaching a deodorizing agent to the skeleton surface of the base material of the net filter.
- the above-mentioned net-like filter substrate constituting the deodorizing filter layer 1 is not particularly limited, but polypropylene, polyethylene, polyester or polyamide is preferably used.
- the shape of the strand of this net-like filter base material is not limited, but usually it is preferably a square, rectangle, hexagon, or rhombus, and a pattern combining two or more of these shapes. You can also.
- the spacing and thickness of the strands are appropriately set in consideration of the target initial pressure loss, the particle size of the deodorizer, the pleat strength, etc., and are not particularly limited.
- the thickness is usually 1 to 15 mm, particularly 2 to 6 mm in order to reduce the amount of deodorant and to keep the pre-strength good, and the strand thickness is preferably pleated. Since it acts on the strength and the acute angle of the apex of the pleats and affects the pressure loss after the filter forming, it is usually 0.1 to 2 mm, particularly 0.3 to 1 mm.
- the net-like filter base material is dip-processed in advance with a resin such as epoxy or polyacrylic acid, or the strand is physically treated by corona discharge treatment. Primer treatment such as roughening the surface can also be applied.
- the net-like filter base material is not particularly limited, but it may be used when processing a binder layer as described later or by pleating. In order to prevent deformation due to heat when the tension is applied, it is preferable to perform biaxial stretching in advance.
- the deodorizer to be attached to the net filter base material is not particularly limited, and can be appropriately selected according to the purpose. Specifically, petroleum pitch-based activated carbon, coconut shell activated carbon, pellet-shaped activated carbon, wood-based activated carbon, natural or synthetic zeolite,
- the particle shape of the deodorant greatly affects the pressure loss of the filter material to be obtained, it is preferably a spherical or elliptical deodorant having a low fluid resistance.
- the selection of the deodorizer has a great influence on the fine dust collection performance, and it is preferable to select a deodorizer with less out-of-dust from the particles.
- deodorized by coating the surface of particles such as spherical petroleum pitch activated carbon with low dust generation, coconut shell activated carbon and zeolite with a porous polymer layer such as polyester, polytetrafluoroethylene (PTFE), and polypropylene.
- An agent (P and adhesive) is preferably used.
- activated carbons with a large adsorption specific surface area are preferred among the deodorizers listed above, but in general, activated carbon is dominated by van der Waals force (V anderwaalsadsoption), so its molecular weight Is disadvantageous in removing gas components having low polarity and strong polarity. Therefore, in order to improve the deodorizing performance of these low molecular polar gas components, it is preferable to subject the activated carbon to a chemical addition treatment according to the purpose.
- Examples of the synthetic and adhering agents include agents that show a neutralization reaction with an acid or a base, and agents that cause a condensation reaction between an aldehyde and an amine by a Schiff reaction.
- examples of the former include phosphoric acid, hydrochloric acid, malic acid, and the like as acidic additives, and sodium carbonate, sodium metasilicate, KOH, NaOH, and the like as basic additives.
- examples of the latter include aminophenylacetic acid, aminobenzoic acid, aminobenzenesulfonic acid and the like.
- the deodorizing filter layer 1 constituting the filter material of the present invention is obtained by adhering the deodorizing agent to the skeleton surface of the net-like filter base material.
- the method for attaching the odorant particles to the base material of the net filter there is no particular limitation on the method for attaching the odorant particles to the base material of the net filter, and an appropriate method may be used.
- a binder layer is formed on the surface of the skeleton of the net filter, and the deodorant is added by this binder.
- a method of attaching to the skeleton surface of the net-like filter base material is preferably used.
- the binder polyamide, polyolefin, ethylene vinyl acetate copolymer, synthetic rubber type, urethane type or acrylic type hot melt, or non-solvent type emulsion thereof is preferably used.
- the dust collection filter layers 2 a and 2 b laminated on the deodorization filter layer may be any one as long as it has a dust collection function.
- Polyurethane foam without a cell membrane is preferably used.
- the material of the fibrous filter is not particularly limited, and examples thereof include polypropylene, polyethylene, polyester, glass, and the like, and one or more of these fibers are preferably used.
- the fiber diameter of these fibers is preferably 1 to 100 m, particularly 10 to 50 zm.
- the basis weight of these fibers is 20 to 200.
- g Zm 2 is preferably 35 to 75 g / m 2 . In this case, if the fiber diameter is too large, the mechanical trapping ability is inferior. On the other hand, if the fiber diameter is too thin, clogging tends to occur. If the basis weight is too large, the pressure loss will increase. Conversely, if the basis weight is too small, the dust collection capacity will decrease.
- the fibrous filter can be formed as a melt blown nonwoven fabric, a spunbond nonwoven fabric, a glass fiber nonwoven fabric, or a composite nonwoven fabric of these using the above fibers, and in this case, it has been subjected to a two-dollar punch process. More preferred.
- a polyether-based or polyester-based polyurethane foam is preferably used, and more specifically, commercially available ( The product name “Everlight SF” manufactured by Prideston Co., Ltd. can be exemplified.
- the dust collection filter layers 2 a and 2 b made of the fibrous filter or the polyurethane foam are subjected to charging treatment.
- a method of laminating these dust collecting filter layers 2 a and 2 b on the deodorizing filter layer 1 it is preferable to bond both with an adhesive.
- the adhesive include polyamide, polyolefin, ethylene acetate vinyl copolymer, synthetic rubber, urethane or acrylic hot. Melt or these non-solvent emulsions are preferably used. Especially, bonding with hot melt applied in the form of non-woven hot melt or spider web is accompanied by pressure loss and gas adsorption performance. It is more preferable from the viewpoint of suppressing the decrease.
- the above-described corona discharge treatment and the primer treatment by the resin coating process are performed to form the net shape constituting the deodorizing filter layer 1.
- the filter base material By applying it to the filter base material, it is possible to improve the affinity with the adhesive and adhere well.
- One filter material of the present invention is obtained by laminating the deodorizing filter layer on both front and back surfaces or any one side of the deodorizing filter layer, and is not particularly limited.
- a filter material having a three-layer structure in which dust collecting filter layers 2 a and 2 b are respectively laminated on the front and back surfaces of the fill layer 1 is preferable.
- a dust collection filter layer 2 a for collecting coarse dust is provided on the upstream side where the gas to be purified flows, and a dust collection filter 2 b for collecting fine dust is provided on the back side on the downstream side. It is preferable from the viewpoint of preventing clogging.
- dust having a large particle diameter is sequentially passed through in principle.
- this density gradient design is arranged on the upstream side of the deodorizing filter layer 1 for collecting the coarse dust collecting filter 2 a and downstream. This can be easily achieved by laminating dust collecting filters 2b for collecting fine dust on the sides.
- a polyurethane foam having a three-dimensional network skeleton structure without the cell membrane is preferably used as the dust collecting film for collecting coarse dust 2a.
- the dust collection filter 1b for dust collection the above-mentioned fiber filter, particularly a polypropylene-based electret non-woven filter excellent in fine dust collection performance is preferably used.
- the filter material of the present invention is processed into a pleated shape.
- the forming process into a leeze shape can be performed by a known method using a known pleating machine.
- Weight per unit 4 9 g Zm 2 , average distance between strands: 4 mm in length, 4 mm in width, average thickness of net: about 0.7 mm near the intersection of length and width, average thickness of strand: about 0.3 mm in both length and width Net material (Nisseki Sheet Pallet System Co., Ltd., trade name “Nisseki Con Ednet”) was cut into a width of 300 mm and a length of 200 mm to obtain a net filter base material.
- acryl-based emulsion binder manufactured by Soken Kagaku Co., Ltd., trade name “EW- 2 5 0 0”
- EW- 2 5 0 0 acryl-based emulsion binder
- the pitch force by this single layer of binder was used to make a petroleum pitch-based spherical activated carbon (made by Kureha Chemical Industry Co., Ltd., trade name “ G—7 0 R ”
- a net-like deodorizing film having an activated carbon deposit of 0 g / m 2 was obtained.
- a polyamide hot-melt nonwoven fabric (trade name “PA-1550” manufactured by Dia Pound Industry Co., Ltd.) cut into the same size on both sides of one layer of this deodorizing filter is layered, and further on the surface side (upstream side)
- Lamination was performed by hot pressing at 0 ° C / 20 sec to obtain a three-layered film.
- the basis weight is 34 g Zm 2
- the average strand spacing is 3.5 mm in length, 4 mm in width
- the average thickness of the net is about 0.4 5 mm in the vicinity of the intersection of the length and width
- Average wall thickness about 0.3 mm in the vertical direction and 0.15 mm in the horizontal direction
- the amount of the activated carbon deposited was 5500 gZm 2 in a flat plate shape.
- the obtained deodorizing filter layer is laminated and adhered with a dust collecting filter layer for collecting coarse dust and a dust collecting filter layer for collecting fine dust, and is formed into a pleated shape and processed into a pleated filter.
- the material was obtained.
- Activated carbon deposition amount of products formed in Puri' form was about 2 7 5 0 g Zm 2.
- Wind speed 1. 0.3 to 0.5 m atmospheric dust collection performance at SmZs e c.
- Pressure loss can be reduced by comparing the same amount of deodorant.
- Fine dust collection performance of about 6.5 times or more can be achieved compared to the same amount of deodorant.
- both coarse dust and fine dust can be collected well, and a sufficient amount of deodorant can be secured to obtain good deodorization performance.
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/481,055 US7063733B2 (en) | 2001-06-22 | 2002-06-21 | Filter member |
EP02743679A EP1402933A4 (en) | 2001-06-22 | 2002-06-21 | FILTER ELEMENT |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001-189833 | 2001-06-22 | ||
JP2001189833A JP2003001028A (ja) | 2001-06-22 | 2001-06-22 | フィルター材 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003000382A1 true WO2003000382A1 (fr) | 2003-01-03 |
Family
ID=19028693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/006196 WO2003000382A1 (fr) | 2001-06-22 | 2002-06-21 | Element filtrant |
Country Status (4)
Country | Link |
---|---|
US (1) | US7063733B2 (ja) |
EP (1) | EP1402933A4 (ja) |
JP (1) | JP2003001028A (ja) |
WO (1) | WO2003000382A1 (ja) |
Cited By (2)
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WO2003066193A1 (fr) * | 2002-02-07 | 2003-08-14 | Bridgestone Corporation | Filtre de nettoyage de fluide et dispositif de filtre |
WO2012069049A1 (en) | 2010-11-23 | 2012-05-31 | Vestergaard Frandsen Sa | A product with low density polymer resin releasing fipronil in a controlled way and use of such a product |
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TW541200B (en) * | 2001-04-04 | 2003-07-11 | Kuraray Chemical Kk | Filter element, process for producing it and filter using the element |
US20040178135A1 (en) * | 2003-03-13 | 2004-09-16 | Beplate Douglas K. | Filtering device incorporating nanoparticles |
US7160361B2 (en) * | 2003-10-15 | 2007-01-09 | Delphi Technologies, Inc. | Evaporative emission treatment device |
US7070641B1 (en) * | 2003-12-03 | 2006-07-04 | Fleetguard, Inc. | Carbon media filter element |
JP4956996B2 (ja) * | 2003-12-24 | 2012-06-20 | 株式会社ブリヂストン | 燃料電池用空気の浄化方法及び装置並びに燃料電池 |
JP4790222B2 (ja) | 2004-01-16 | 2011-10-12 | トヨタ紡織株式会社 | ガス除去装置 |
DE202004021497U1 (de) * | 2004-07-01 | 2008-07-10 | Carl Freudenberg Kg | Filterelement und Filteranordnung |
JP5168752B2 (ja) * | 2004-08-04 | 2013-03-27 | パナソニック株式会社 | 脱臭フィルター |
US7250126B2 (en) * | 2004-08-11 | 2007-07-31 | Fleetguard, Inc. | Acid-neutralizing filter media |
FR2875714B1 (fr) * | 2004-09-29 | 2006-11-24 | Valeo Materiaux De Friction Sa | Media filtrant pour filtration de gaz, dispositif de filtration et procede de fabrication du media filtrant |
ITMI20042117A1 (it) * | 2004-11-04 | 2005-02-04 | Tela S R L | Struttura di filtro composito |
US7740810B2 (en) * | 2004-12-14 | 2010-06-22 | Carrier Corporation | Photocatalyst protection |
DE102005012659A1 (de) | 2005-03-18 | 2006-09-21 | Herding Gmbh Filtertechnik | Filterelement mit Beschichtung zur Oberflächenfiltration |
US20060225734A1 (en) * | 2005-04-08 | 2006-10-12 | Ox-Gen Inc. | Filter for oxygen delivery systems |
JP2006331722A (ja) * | 2005-05-24 | 2006-12-07 | Nitto Denko Corp | 燃料電池用フィルター濾材およびそれを用いた燃料電池用フィルター |
US20060272304A1 (en) * | 2005-06-03 | 2006-12-07 | Louis Schupp John W | Air treatment apparatus and method of use thereof |
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Also Published As
Publication number | Publication date |
---|---|
EP1402933A4 (en) | 2004-11-10 |
JP2003001028A (ja) | 2003-01-07 |
US20040163540A1 (en) | 2004-08-26 |
US7063733B2 (en) | 2006-06-20 |
EP1402933A1 (en) | 2004-03-31 |
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