Strength Properties Of Composite Filter Materials

The longitudinal and transverse strengths of needle - punched composite filter materials vary greatly, which is mainly caused by the combination of Needle Punched Non Woven Fabric and woven base fabric. First, depending on the processing method of the Needle Punched Non Woven, the angle of the fibers in the web after carding is basically the same. The strength of the Needle Punched Nonwoven mainly depends on the strength of the fibers themselves and the clamping force between the fibers, which makes the needle punched Non Woven Fabric have obvious anisotropy. When preparing the needle punched non woven fabric, the laying method is cross - laying, so that the longitudinal strength of the needle punched non woven is smaller than the transverse strength. Third, the longitudinal strength of the woven base fabric is greater than the lateral strength, while the strength of the composite filter material is mainly provided by the base fabric.