| 摘要 |
<p>[PROBLEMS] To provide a pleated filter cartridge that realizes an increase of surface area per volume of filter material (porous filter membrane) to thereby enable a flow rate greater than in the prior art with respect to the same volume. [MEANS FOR SOLVING PROBLEMS] There is provided a filter cartridge accommodating a filter material composed of a pleated porous membrane, a pleated nonwoven net disposed on the upstream side of the membrane and a pleated woven net disposed on the downstream side of the membrane, these joined together at edge portions thereof. This filter cartridge realizes a flow rate greater than that of reference filter cartridge accommodating a filter material composed of a pleated porous membrane, a pleated woven net disposed on the upstream side of the membrane and a pleated woven net disposed on the downstream side of the membrane, these joined together at edge portions thereof.</p> |
