Cationically charged coating on hydrophobic polymer fibers with poly(vinyl alcohol) assist

A wherein a a cationic of coating hydrophobic polymer fibre, coating has a crossed and then the functional cationic polymer, for example function of polyurethane or function of chinlon and. The invention is wherein the fibre to the filtering material, comprising a cationic of coating hydrophobic polymer fibre comprises upper surface. The invention is provided for preparing fibre to the filtering material method. The method comprising: Is of filtering material of the hydrophobic polymer fibre according fibre; Processing the fibre to the filtering material with a thermal crosslinking function cationic polymer peroxide, the processing temperature is in the fibre layer is the functional cationic polymer Coating Cloth, to the solution containing functional cationic polymer, polyvinyl alcohol and polyvinyl alcohol organic solvent and water; And a filter the material to the heat - treatment is Coated With the fibres obtained, the processing temperature and time is not present in an amount sufficient to react with a hydrophobic polymer fibre and cationic polymer crosslinking.