JPS57105217A - Fibrous filter medium - Google Patents
Fibrous filter mediumInfo
- Publication number
- JPS57105217A JPS57105217A JP18264380A JP18264380A JPS57105217A JP S57105217 A JPS57105217 A JP S57105217A JP 18264380 A JP18264380 A JP 18264380A JP 18264380 A JP18264380 A JP 18264380A JP S57105217 A JPS57105217 A JP S57105217A
- Authority
- JP
- Japan
- Prior art keywords
- electret
- effect
- filter medium
- fibers
- mechanical
- 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.)
- Pending
Links
Landscapes
- Filtering Materials (AREA)
- Electrostatic Separation (AREA)
Abstract
PURPOSE: To obtain a filter medium which is high in efficiency, low in pressure loss and has a long useful life by mixing non-electret fibres into electret fibers for cleaning air, wherein the non-electret fibers are smaller than the electret fibers in diameter.
CONSTITUTION: The filter medium is composed of a mixture of the electret fibrous materialIand the non-electret fibrous material II smaller than the fibrous materialIin diameter, and it has a synergistic effect of combined merits of an electret effect and a mechanical effect. The materialIis very high in initial efficiency because it securely adsorbs fine particles through polarizing forces and Coulomb forces. In addition, since the polarizing force is based on the Coulomb force, the materialIshows a greater effect with a larger gaps between fibers, as compared to a mechanical filter. With the addition of the mechanical effect of the material II, the filter medium maintains a high effect even after used for a long period of time owing to the synergistic effect, and has a pressure loss much smaller than that of a mechanical filter. Further, crossing or contacting parts of the materialIitself are reduced, resulting in a higher efficiency.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18264380A JPS57105217A (en) | 1980-12-22 | 1980-12-22 | Fibrous filter medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18264380A JPS57105217A (en) | 1980-12-22 | 1980-12-22 | Fibrous filter medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57105217A true JPS57105217A (en) | 1982-06-30 |
Family
ID=16121880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18264380A Pending JPS57105217A (en) | 1980-12-22 | 1980-12-22 | Fibrous filter medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57105217A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6038020A (en) * | 1983-08-09 | 1985-02-27 | Sanyo Electric Co Ltd | Filter of air purifier |
JPS6044015A (en) * | 1983-08-23 | 1985-03-08 | Koken Kk | Electrostatic type air filter |
EP0207203A2 (en) * | 1985-05-30 | 1987-01-07 | Research Development Corporation of Japan | Electrostatic dust collector |
US5350620A (en) * | 1989-11-14 | 1994-09-27 | Minnesota Mining And Manufacturing | Filtration media comprising non-charged meltblown fibers and electrically charged staple fibers |
WO1996037276A1 (en) * | 1995-05-25 | 1996-11-28 | Kimberly-Clark Worldwide, Inc. | Filter matrix |
US5807366A (en) * | 1994-12-08 | 1998-09-15 | Milani; John | Absorbent article having a particle size gradient |
US5814570A (en) * | 1994-06-27 | 1998-09-29 | Kimberly-Clark Worldwide, Inc. | Nonwoven barrier and method of making the same |
US5821178A (en) * | 1994-12-30 | 1998-10-13 | Kimberly-Clark Worldwide, Inc. | Nonwoven laminate barrier material |
US5830810A (en) * | 1995-07-19 | 1998-11-03 | Kimberly-Clark Worldwide, Inc. | Nonwoven barrier and method of making the same |
US5834384A (en) * | 1995-11-28 | 1998-11-10 | Kimberly-Clark Worldwide, Inc. | Nonwoven webs with one or more surface treatments |
US5834386A (en) * | 1994-06-27 | 1998-11-10 | Kimberly-Clark Worldwide, Inc. | Nonwoven barrier |
US5998308A (en) * | 1994-02-22 | 1999-12-07 | Kimberly-Clark Worldwide, Inc. | Nonwoven barrier and method of making the same |
JP2003095244A (en) * | 2001-09-20 | 2003-04-03 | Toppan Printing Co Ltd | Sealed container |
-
1980
- 1980-12-22 JP JP18264380A patent/JPS57105217A/en active Pending
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6038020A (en) * | 1983-08-09 | 1985-02-27 | Sanyo Electric Co Ltd | Filter of air purifier |
JPS6044015A (en) * | 1983-08-23 | 1985-03-08 | Koken Kk | Electrostatic type air filter |
EP0207203A2 (en) * | 1985-05-30 | 1987-01-07 | Research Development Corporation of Japan | Electrostatic dust collector |
US5350620A (en) * | 1989-11-14 | 1994-09-27 | Minnesota Mining And Manufacturing | Filtration media comprising non-charged meltblown fibers and electrically charged staple fibers |
US5998308A (en) * | 1994-02-22 | 1999-12-07 | Kimberly-Clark Worldwide, Inc. | Nonwoven barrier and method of making the same |
US5814570A (en) * | 1994-06-27 | 1998-09-29 | Kimberly-Clark Worldwide, Inc. | Nonwoven barrier and method of making the same |
US5834386A (en) * | 1994-06-27 | 1998-11-10 | Kimberly-Clark Worldwide, Inc. | Nonwoven barrier |
US5807366A (en) * | 1994-12-08 | 1998-09-15 | Milani; John | Absorbent article having a particle size gradient |
US5916204A (en) * | 1994-12-08 | 1999-06-29 | Kimberly-Clark Worldwide, Inc. | Method of forming a particle size gradient in an absorbent article |
US5821178A (en) * | 1994-12-30 | 1998-10-13 | Kimberly-Clark Worldwide, Inc. | Nonwoven laminate barrier material |
US5877099A (en) * | 1995-05-25 | 1999-03-02 | Kimberly Clark Co | Filter matrix |
WO1996037276A1 (en) * | 1995-05-25 | 1996-11-28 | Kimberly-Clark Worldwide, Inc. | Filter matrix |
US5830810A (en) * | 1995-07-19 | 1998-11-03 | Kimberly-Clark Worldwide, Inc. | Nonwoven barrier and method of making the same |
US5834384A (en) * | 1995-11-28 | 1998-11-10 | Kimberly-Clark Worldwide, Inc. | Nonwoven webs with one or more surface treatments |
JP2003095244A (en) * | 2001-09-20 | 2003-04-03 | Toppan Printing Co Ltd | Sealed container |
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