Composite air-filtering material

Details Composite air-filtering material Composite air-filtering material

B - Operations, Transporting

01

D

B01D 39/14 (2006.01) B01D 39/08 (2006.01) B32B 5/06 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2047337

An air-filtering material exchangeably attached to a home- use or automobile air filter comprises a water jet type nonwoven fabric at an air outlet side and another type nonwoven fabric or fiber assembly at an air inlet side. These nonwoven fabric sheets are laminated on one another by needle punching. The water jet type nonwoven fabric is made from crowded finer fiber staples, and bits formed therein by penetration of needles of a needle punching machine may be stopped up by centripetally moving fiber staples surrounding the bits.

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