A Study of Wool/Polypropylene Non-wovens as an Alternative to the Hansen Filter

Textile Research Journal

Volumn 80, Issue 13, 2010, Pages 1265-1277

  Schutz J A ^a   Humphries, W ^a  

^a CSIRO   (Australia)

Author keywords

fabric formation; fabrication; fiber; manufacture; materials; measurement; performance

Indexed keywords

AROMATIC COMPOUNDS; DROPS; DUST; ELECTROSTATICS; FABRICATION; FIBERS; MANUFACTURE; MATERIALS; MEASUREMENT; POLYPROPYLENES; PRESSURE DROP; WOOL; YARN;

ELECTROSTATIC FILTERS; FIBER FILTERS; LOW PRESSURE DROP; MECHANICAL FILTERS; METHYLENE BLUE; OPTIMUM PERFORMANCE; PARTICLE PENETRATION; PERFORMANCE;

ELECTROMECHANICAL FILTERS;

ASSEMBLY; DUST; ELECTROSTATICS; FABRIC; FIBERS; FURNACES; PERFORMANCE; POLYMERS; PRESSURE GRADIENT; SYNTHETIC POLYMERS; WOOL; YARN;

FABRIC MANUFACTURE; FILTER FABRIC; LOADING (TESTING); NONWOVEN FABRIC; PERFORMANCE ASSESSMENT; POLYPROPYLENE FABRIC; PRESSURE; WOOL FABRIC;

EID: 77955158350     PISSN: 00405175     EISSN: None     Source Type: Journal    
DOI: 10.1177/0040517509358803     Document Type: Article

References (21)

1. Hansen, N.L. (inventor), “Method for the Manufacture of Smoke Filters or Collective Filters”, Nicolai Louis Hansen, assignee, Britain 384, 052, 1 December 1932.
2. Feltham, F.J., The Hansen Filter, Filtr. Sep., 16, 370-372 (1979).
3. Kimura, K. (inventor), “Electrostatic Filter Suitable for Respirator - Comprising Electrostatically Charged Fibrous Component and Electrostatically Charged Resinous Component Adhering to it”, KOKEN KK (KOKE), assignee, EP850692-A; EP850692-A1; JP10180021-A; US5935303-A; KR98063458-A; EP850692-B1; DE69705600-E; JP3566477-B2; KR479285-B, 1997.
4. Van Turnhout, J. (inventor), “Electrically Charged Fibre Filter Prodn - From Fibrillated Electrically Charged Drawn Film of Non-Polar Material”, VERTO NV (VERT-Non-standard) MINNESOTA MINING CO (MINN), assignee, Netherlands US3998916-A, 29 September 1975.
5. Brown, R.C. (inventor), “Polyolefin-Modacrylic Fibre Blends for Electrostatic Filters - Are Cleaned, Carded into a Fleece and Needle-Punched into a Felt”, NAT RES DEV CORP (NATR) BRITISH TECHNOLOGY GROUP LTD (BRTE-Non-standard), assignee, United Kingdom EP246811-A, 25 November 1987.
6. Brown, R.C., Effect of Electric Charge in Filter Materials, Filtr. Sep. 26, 46-51 (1989).
7. Lee, K., and Kwangyeon, L. (inventors), “Wool Filter for Dust Proof Mask - Includes Nonwoven Fabric of Randomly Mixed Wool and Slit Film Fibres”, LEE K (LEEK-Individual) KWANGYEON L (KWAN-Individual) KIM J (KIMJ-Individual), assignee, EP718011-A; EP718011-A1; US5529838-A; CN1125274-A; KR149989-B1, 1995.
8. Brown, R., “Air Filters Made from Mixtures of Electrically Charged Fibres.”, 117Jan van Rijswijcklaan 58, 2018 Antwerpen, Belgium: Koninklijke Vlaamse Ingenieursvereniging (Royal Flemish Society of Engineers), Genootschap Mechanische Scheidingstechnieken en Deeltjestechnologie, 1984.
9. Baumgartner, H., and Löffler, F., Particle Collection in Electret Fibres Filters - A Basic Theoretical and Experimental Study, Filtr. Sep., 24(5), 346-51 (1987).
10. Lethimäki, M., and Heinonen, K., Reliability of Electret Filters, Build. Environ. 29(3), 353-355 (1994).
11. Walsh, D.C., and Stenhouse, J.I.T., The Effect of Particle Size, Charge, and Composition on the Loading Characteristics of an Electrically Active Fibrous Filter Material, J. Aerosol Sci., 28(2), 307-321 (1997).
12. Bostock, G.J., Electret filters for respiratory protection, “Electret Filters, Production and Properties”, Ian, J., Stenhouse, T., Gradon, L., and Marijnissen, J. C. M. (eds), Delft University Press, Delft, The Netherlands, 1999, pp. 59-68.
13. Podgórski, A., Selected problems in the modelling of aerosol filtration in fibrous filters, in “Electret Filters, Production and Properties”, Ian, J., Stenhouse, T., Gradon, L., and Marijnissen, J. C. M. (eds), Delft University Press, Delft, The Netherlands, 1999, pp. 95-106.
14. Walsh, D.C., and Stenhouse, J.I.T., Parameters Affecting the Loading Behavior and Degradation of Electrically Active Filter Materials, Aerosol Sci. Tech., 29(5) 419-432 (1998).
15. Dorman, R.G., Filter materials, in “High-Efficiency Air Filtration”, White, P. A. F., and Smith, S. E. (eds), Butterworth & Co. (Publishers) Ltd., London, 1964, pp. 100-132.
16. Schutz, J.A., Finn, N., and Wood, R.D. (inventors), “Treating a Fabric Used As Electrostatic Filter Medium in Domestic and General Air Conditioning Systems, by Compacting NonWoven Web of Fibers While in Contact With Liquid Phase, and Electrostatically Charging the Compacted Web of Fibers”, COMMONWEALTH SCI & IND RES ORG (CSIRO), assignee, WO2006128237-A1, 2006.
17. Committee ME/80, Air Filters, “AS1324.2-1996”, Air Filters for Use in General Ventilation and Airconditioning - Part 2: Methods of Test, Standards Australia, 1996.
18. Schütz, J.A., Interdependence of Fine Particle Filtration Performance and Dust Load for Electrostatic Media, Filtration, 8(3), 252-258 (2008).
19. Wang, C.S., Electrostatic Forces in Fibrous Filters - a Review, Powder Technol., 118(1-2), 166-170 (2001).
20. Stenhouse, J., Ian T., and Walsh, D.C., Experimental measurements of filter loading characteristics, in “Electret Filters, Production and Properties”, Ian, J., Stenhouse, T., Gradon, L., and Marijnissen, J. C. M. (eds), Delft University Press, The Netherlands, 1999, pp. 85-93.
21. Smith, P.A., New developments in nonwovens for gas and air filtration, in “Nonwovens”, Bombay Textile Research Association, India, 1990, pp. 1-31.