The invention discloses a
glass fiber filter material and a preparation method thereof. The
filter material comprises a base fabric, wherein the upper surface and the lower surface of the base fabric are respectively provided with a non-woven layer, and at least one of the non-woven
layers is internally and externally provided with a foam
coating layer respectively. The preparation method of the
glass fiber filter material comprises the following steps of: manufacturing the
glass fiber filter material, preparing finishing agent, generating foam,
coating, and
drying. The glass
fiber filter material is subject to foaming layer arrangement, and the concentration of the finishing agent is increased, so that the finishing agent is distributed in the filter material more evenly, the migration phenomenon is reduced, and a
mass of water resource,
electric energy and
heat energy are saved; after the glass
fiber filter material is finished, and the gluing quantity of the filter material is decreased to 7-15% from 12-25% during finishing in a leaching way, so that the glass
fiber filter material is even in distribution of the gluing quantity, good in flexibility, stable in quality,
chemical corrosion-resistant, good in
water resistance and oil resistance, easy to dedust, easy for industrial production, free of the existing water and energy-
wasting step of finishing in a padding way, goodin
folding endurance, and long in service life at about 15 months.