AIR FILTER WITH METAL SPUTTERED ON SURFACE, WHICH CAN BE CLEANED TO BE REPRODUCED

摘要

PROBLEM TO BE SOLVED: To provide an air filter which can be cleaned and reproduced and is made of nonwoven fabric which can be repeatedly washed and used by subjecting the surface of the nonwoven fabric to metal sputtering. SOLUTION: In the air filter which can be cleaned and regenerated, metal sputtering is applied onto the surface, thereby, pressure loss of the filter is easily recovered by washing, the air filter can be regenerated and reused and the durability retains even when being washed because of the metal sputtered fiber. In addition, when the nonwoven fabric subjected to metal sputtering onto the surface and the nonwoven fabric not subjected to metal sputtering onto the surface are laminated, the nonwoven fabric subjected to metal sputtering functions as a prefilter, prevents the soiling of the nonwoven fabric not subjected to metal sputtering and can extend the life thereof. COPYRIGHT: (C)2004,JPO&NCIPI