Deodorizing air filter and method of fabricating same

Details Deodorizing air filter and method of fabricating same Deodorizing air filter and method of fabricating same

1998-08-17

2000-08-08

Meeks, Timothy

Coating processes

Foraminous product produced

Filter, sponge, or foam

427412, 427428, 55DIG5, 55524, 55528, B05D 140

Patent

active

060999012

ABSTRACT:
A deodorizing air filter media which comprises a web of non-woven fibers having myriad discrete particles of a deodorizing component, such as sodium bicarbonate, uniformly dispersed throughout the thickness of the web. The media is fabricated by a two step process, wherein a non-woven web is passed through a first aqueous solution including a binder, and then dried to cured the binder and anchor the crossing points of the fibers in the web. Next, the dried web is passed through a second aqueous solution having a binder in a reduced concentration, together with a particulate deodorizing component suspended therein. The web is then again dried to cure the newly added binder and anchor the particulate deodorizing component to the fibers.

REFERENCES:
patent: 3857732 (1974-12-01), Yoshino
patent: 4081501 (1978-03-01), Muther
patent: 4510193 (1985-04-01), Blucher et al.
patent: 5254386 (1993-10-01), Simpson et al.
patent: 5338340 (1994-08-01), Kasmark, Jr. et al.
patent: 5783080 (1998-07-01), Hsieh

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