Leonard E. DUELLO - Hewitt TX, US Thomas D. Hawkins - Waco TX, US Christopher B. Peart - Madisonville KY, US Nathaniel J. Nance - Mexia TX, US
International Classification:
B01D 39/16 B29C 65/00
US Classification:
55528, 156 60
Abstract:
The present disclosure relates generally to a nonwoven filtration media comprising a bonded mix of different, discontinuous, thermoplastic resin fibers and optionally discontinuous cellulosic fibers. In some embodiments a tackifier is added to the nonwoven filtration media to provide a sticky or adhesive surface on the fibers. The nonwoven media has an advantageous combination of stiffness, foldability, efficiency and the ability to retain a fold. The nonwoven media can be thermally bonded during the production process. The advantageous combination of mechanical properties allow the disclosed nonwoven media to accept and retain folds and pleats better than some conventional filtration materials while the mix of different fibers provides desirable filtration properties.
Nonwovens Of Controlled Stiffness And Retained Foldability
Leonard E. Duello - Hewitt TX, US Thomas D. Hawkins - Waco TX, US Christopher B. Peart - Kingsport TN, US
International Classification:
B01D 39/14 D04H 13/00 B03C 3/38
US Classification:
96 27, 156148, 55524
Abstract:
The present disclosure relates generally to a nonwoven filtration media comprising a bonded mix of different, discontinuous, thermoplastic resin fibers and optionally discontinuous cellulosic fibers. The nonwoven media has an advantageous combination of stiffness, foldability, efficiency and the ability to retain a fold. The nonwoven media can be thermally bonded during the production process. The advantageous combination of mechanical properties allow the disclosed nonwoven media to accept and retain folds and pleats better than some conventional filtration materials while the mix of different fibers provides desirable filtration properties.
Multilayer Composite Nonwoven Material, A Fluid Filter And A Method Of Making The Nonwoven Material
Leonard E. Duello - Hewitt TX, US Christopher B. Peart - Kingsport TN, US Harley S. Lemaster - Florence SC, US David E. Lemaster - Florence SC, US
International Classification:
B01D 39/00 B32B 38/08 B32B 38/16
US Classification:
210508, 156242
Abstract:
Disclosed herein is a multilayer, composite nonwoven material comprising a first’ fibrous nonwoven web having 1 an interior face in contact with an interior face of a second fibrous nonwoven web and a resin binding the fibers in the first and second webs; the fibers of the first web comprising staple length fibers having an. average denier in the range of about 0.9 to about 4.5 and the fibers of the second web comprising staple length fibers having an average denier in the range of about 2.0 to about 6.5, the first web having a different resin binder content than the second web. A fabric formed from the nonwoven material, a fluid filter, and a method of making the nonwoven material also are disclosed.
Trackified Air Filtration Media And A Self-Supporting Filter Having Improved Stiffness And Foldability
Leonard Duello - Hewitt TX, US Thomas Hawkins - Waco TX, US Christopher Peart - Kingsport TN, US Nathaniel Nance - Mexia TX, US
International Classification:
B01D 39/18 C08J 5/06
US Classification:
55524, 1563082
Abstract:
The present disclosure relates generally to a nonwoven filtration media comprising a bonded mix of different, discontinuous, thermoplastic resin fibers and optionally discontinuous cellulosic fibers. In some embodiments a tackifier is added to the nonwoven filtration media to provide a sticky or adhesive surface on the fibers. The nonwoven media has an advantageous combination of stiffness, foldability, efficiency and the ability to retain a fold. The nonwoven media can be thermally bonded during the production process. The advantageous combination of mechanical properties allow the disclosed nonwoven media to accept and retain folds and pleats better than some conventional filtration materials while the mix of different fibers provides desirable filtration properties.
- Atlanta GA, US Brian Fong - Lakeland TN, US Jessica S. Flinn - Hernando MS, US Leonard E. Duello - Appleton WI, US
International Classification:
B01D 39/18 B01D 39/16
Abstract:
Air filtration media including synthetic and cellulose fiber layers are provided. More particularly, the air filtration media have high initial efficiency with improved durability, fire retardance, anti-microbial activity, and moisture resistance. The air filtration media can be used in air filters for a variety of applications.
Structured, Dispersible Nonwoven Web Comprised Of Hydroentangled Individualized Bast Fibers
- Atlanta GA, US Micheal S. Lerch - Roswell GA, US Joseph H. Miller - Neenah WI, US Dean J. Baumgartner - Bonduel WI, US Greg Wendt - Neenah WI, US Daniel Sumnicht - Hobart WI, US Leonard E. Duello - Appleton WI, US David W. White - Clintonville WI, US Tom J. Daul - Oneida WI, US Kip K. Decker - Neenah WI, US Samuel C. Baer - Atlanta GA, US
A water-dispersible nonwoven substrate includes a structured web of fibers. The structured web has a first surface and a second surface. The first surface has substantially filled protrusions extending outwardly from the first surface and connecting regions disposed between the protrusions. The average fiber densities of the protrusions and connecting regions are substantially the same, and the fibers are individualized plant-based fibers, reconstituted cellulosic fibers, or a combination thereof.
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