Nonwoven lyocell fiber webs for filtration

摘要

Cellulose filtration products comprising nonwoven lyocell fiber webs in which the fibers have a diameter of from 3 to 12 microns, the largest pore diameter of less than about 300 microns and a mean flow pore diameter of less than about 150 microns are disclosed. Multilayer nonwoven lyocell fiber webs are also disclosed which have lower mean flow pore diameters and lower pore sizes.