WEB-FILM FILTER FORMED OF ALIPHATIC POLYESTER FIBER FOR PURIFYING AIR, AND METHOD FOR PRODUCING SAME

摘要

The present invention provides an air purification filter as a method for reducing the filter waste burden of existing air purification filters, wherein the air purification filter has a high fine particle removal efficiency and uses a web-film formed of a biodegradable aliphatic polyester-based fiber. More specifically, the present invention provides an air purification filter in which the surface of fibers are coated with chitosan such that the reduction in fine particle removal efficiency is low even in the presence of moisture or high humidity.