Filter element for fine purification of raw milk

摘要

The invention relates to detachable cartridge-type filters for purification of milk. A filter element for fine purification of raw milk includes a tubular cartridge comprising a frame and a filtering zone. The cartridge, made of a food-grade polymeric material, is formed by discrete rows of aerodynamically extruded fibres whose pore size decreases radially from the periphery towards the center. Each row comprises fibres of greater thickness and of lesser thickness. Those of lesser thickness are compressed to each other to form the frame of the cartridge. The fibres of bigger thickness collectively constitute the filtering zone of the cartridge.