ES fiber is an ideal hot melt fiber, which is mainly used for hot melt processing. The carded fiber web is thermally bonded by hot rolling or hot air penetration, and the relative melting point components form a fusion at the fiber intersection, and the non-crossing fiber remains in its original state after cooling. This is a form of "spot bonding" rather than "area bonding", so the product has characteristics such as bulkiness, softness, high strength, oil absorption, and filtration.

ES fiber filter element is a double combination of polypropylene and polyester melt melt spray composite fiber precursor through mold polymerization for molding, the skin component polyethylene is the role of hot adhesive, polypropylene is the main fiber skeleton material, the inner layer is the microfiber directional filtration pore size is smooth to achieve the final accuracy of the filter layer.