Abstract: A method of treating industry filtration media provides for cutting used filtration media into small pieces and densifying the cut-up used filtration media for further use in waste recycling. The filtration media can come in rolls or loose. Prior to cutting, a ferrous part of the filtration media can be separated from a non-ferrous part thereof, and the non-ferrous part can be subjected to brushing prior to cutting. The cut-up used filtration media can also be mixed with clean scraps prior to the step of densifying.

Abstract: A method of treating industry filtration media comprise cutting the used filtration media into small pieces and densifying the cut-up used filtration media, for further use in waste recycling. The filtration media can come in rolls or loose. Prior to cutting, ferrous part of the filtration media can be separated from a non-ferrous part thereof, and the non-ferrous part can be subjected to brushing prior to cutting. The cut-up used filtration media can also be mixed with clean scraps prior to the step of densifying.

Abstract: A high efficiency and high capacity filter medium including a top layer of fibrous felt material, an intermediate layer of melt-blown material, and a substrate layer needled together into an integrated layer of filter material. The substrate layer is formed of a layer of composite fiber including a group of melt-blown fibers interspersed between groups of spun-bonded fibers. Alternatively, the substrate layer is formed of spun-bonded material.

Abstract: A filter media (10) of the type supported across a fluid flow passage for collecting particulate out of the fluid and subsequently being moved out of the flow passage after becoming congested with particulate. The filter media (10) includes a top layer (12), a middle layer (14), and a bottom layer (16). The middle layer (14) comprises a support web (18) formed by entwined cotton fibers (20), and a mesh (22) supported by the web (18) formed by entwined glass microfibers (24). The middle layer (14) forms a plurality of minute pore passages between adjacent glass microfibers (24) and cotton fibers (20). The top layer (12) is a nonwoven wet laid polyester material for preventing adherence of the fiber media (10) to the edges of the fluid flow passage. The bottom layer (16) is a nonwoven spun bonded polyester material highly resistant to tear for supporting the filter media (10) while it is moved out of the flow passage.